几百名西班牙士兵如何推翻两个帝国?——Si Sheppard
这些征服是联盟接管,而不是几百名欧洲人单独取胜。 西班牙人或许只占 Cortés 最终兵力的0.5%;Tlaxcalans、Totonacs、Cañari、Chachapoya、Aymara 及其他臣属民族提供了决定性兵力。Sheppard 的修正非常直接:欧洲技术可以赢下战斗,但没有原住民盟友基于自身利益参战,“他们不可能赢得这场战争”(they could not have won the war)。Dwarkesh 开场的类比是:这像一个动机不透明的外来者,利用技术和外交,夺取一个规模大得多的秩序。
西班牙人杠杆最大的动作,是抓住一个存在单点故障的体系的统治者。 Cortés 擒获了 Moctezuma;Pizarro 以约160–190人伏击并抓获 Atahualpa,随后把这名被俘的君主变成控制帝国的杠杆。Moctezuma 逐渐成为甘愿配合的傀儡;Atahualpa 学会西班牙语、打牌和下棋,用金银换取释放,还可能误以为 Pizarro 会像一个守信的统治者那样履约——Pizarro 收下赎金后将他杀死。两种情况下,征服者都“斩首地方贵族,把自己插到权力顶端”,利用了高度集中的等级体系:这些体系之所以看似强大,恰恰是因为大量权力都汇聚于一个人。
马匹和钢铁制造了最初压倒性的战场优势,而火器与其说是杀伤技术,不如说是心理戏剧。 Toledo 钢铁惩罚了使用劈砍武器的战士,骑兵可以冲入松散阵形、锁定显眼的指挥官,或以步兵无法追上的速度撤退。在 Cajamarca,大炮和火绳枪造成的实际杀伤有限,却让西班牙人看起来能够“控制雷电”,引发溃败,最终造成数千人死亡,而西班牙人没有一名战斗阵亡;唯一的西班牙伤者是 Pizarro 的手。
原住民的应对能力很强,但时间窗口致命地短。 Aztec 和 Inca 军队能够以数量淹没战场、从屋顶作战、用缴获的长剑临时制作长矛、用 bolas 对付马匹、操作弩和火器,并学会骑马。但 Cortés 只用了2年半就拿下约600万人的帝国,Pizarro 约用5年征服了一个约1000万人的帝国;“根本没有足够时间”同时重写军事 doctrine、宗教、指挥结构和技术。
结果在战术上取决于偶然,在结构上却倾向于欧洲最终占优。 Cortés 可能多次丧命;Atahualpa 可能拒绝走进 Pizarro 的陷阱;Inca 也几乎在 Cuzco 消灭西班牙人。然而天花和其他旧大陆疾病、海军优势、沿海堡垒、持续移民,以及臣属民族的叛乱意味着,即便原住民取得短期胜利,结果可能也只是一个更慢、更均衡版本的殖民化,这是 Sheppard 的判断。
贵金属暴增完成了全球化,却也像资源诅咒一样反噬西班牙。 Potosí 的白银流经欧洲和 Manila,进入 China,换回丝绸、瓷器、香料及其他实物商品,把贸易真正连接成跨越全球的体系。但流动性泛滥推高了西班牙物价、压低实际工资,为大多以失败告终的战争提供资金,也削弱了西班牙建设资本市场和生产性制度的动力,而这些制度正在 England 和 Netherlands 成形:“小心你许下的愿望,因为它可能真的会实现。”
最深层的制度优势,是可复用的知识和可替换的组织。 Pizarro 学会了 Cortés 的打法,而 Aztec 和 Inca 世界几乎没有彼此交流军事技术;后来,特许公司能够替换领导人、控制税收基础、雇用本地军队、利用内部竞争,其可靠性超过了必须依赖血缘继承、无法承受糟糕继任的国家。整集更大的警告是:一个相对微小的技术优势,一旦与组织学习、地方盟友,以及现有统治者无法想象的人口潮叠加,就会呈爆炸式复利。
1. 大西洋压力把探索变成了创业体系
Dwarkesh 将这一集框定为 AI 接管的历史类比:一个动机不被原住民理解的外来力量,利用外交谋略和技术优势,击败规模更大的秩序。
Sheppard 从欧洲“被大西洋堵在身后”讲起:欧洲被隔绝在东方香料和丝绸市场之外,因此被迫创新。葡萄牙船长不断积累风向、潮汐和海岸线知识,直到海洋变成“一条高速公路”;西班牙向西的豪赌遵循了同样的商业逻辑。
在 Sheppard 的框架里,Columbus 1492年的航行,是建立在严重错误地理判断上的创业。意外发现的大陆最初像是一场失望,后来却逐渐显现为可以开采的土地、劳动力和财富。
Hernán Cortés 把 Diego Velázquez 在1518年签发的沿海探索授权,变成了一场未经授权的征服冒险。11月18日,总督试图阻止他,但 Cortés 仍然起航,声称“这一切都在我的掌控之中”;此后他“真的驶出了地图边缘”,在没有王室授权的情况下不断即兴行动。
2. 马匹、钢铁和一个受围困的盟友让 Cortés 变得危险
Cortés 的政治嗅觉察觉到,Aztec 的宏伟掩盖着臣属民族的怨恨。沿海的 Totonacs 刚被纳入 Mexica 帝国体系,把这些陌生人视为可以借力的筹码;内陆则有几百名西班牙人与数千名 Tlaxcalans 打成僵持,随后将他们从敌人变成向导和增援力量。
Sheppard 下调了早期火器的作用:震撼感过去后,装填缓慢使它们成为有限的战场资产。钢铁更重要。用于刺击的 Toledo 长剑,可以攻击使用黑曜石劈砍武器的战士,后者的动作会暴露身体;头盔则能挡住原本足以造成重伤的武器。
Cortés 仔细掩盖西班牙人也会死这一事实,把阵亡者埋在住处下面,不让 Tlaxcalans 看到他们的战果。“这既是一场心理战,也是一场肉搏战。”
马匹是进入内陆后最关键的技术:原住民军队没有可与之匹敌的牲畜、战术 doctrine 或训练有素的长矛方阵。骑兵可以冲穿松散队列,也能在战局逆转时撤离;披甲战獒则进一步制造恐惧。对被包围、又被切断海盐供应的 Tlaxcala 而言,结盟是一场“孤注一掷”,而不是臣服。
3. Moctezuma 暴露了帝国的单点故障
Tenochtitlan 的会面通过 Cortés 的翻译和情妇 Doña Marina,即 Malinche,将两个世界连接起来。Moctezuma 知道这支远征队正在到来,最初试图赠送礼物让他们离开,但 Aztec 的黄金反而强化了 Cortés 直达权力中心的决心。
Moctezuma 的兄弟 Cuitláhuac 曾警告:“如果你让这个人进了你的家,他就会把你的家夺走。”但 Sheppard 认为,放 Cortés 进来可能仍是最不坏的选择:把这个会破坏稳定的外来者作为客人留在身边,比让他在怨恨已久的臣属民族之间自由活动更安全。
在 Sheppard 的反事实推演里,真正的关键错误是 Moctezuma 始终让自己处于可被接近的状态。如果他去朝圣或远征,通过代理人统治,Cortés 就无法抓住他,也无法在不暴露意图的情况下公开追捕他。
Cortés 虚称自己是“不朽的 Charles V”的代言人,而 Charles V 根本不认识他。西班牙人在沿海遇袭后,Cortés 借此把 Moctezuma 置于“保护性拘押”之下,随后在宫廷面前将负有责任的官员活活烧死。皇帝在心理上垮掉并转为服从后,Cortés 实际上已经控制了整个帝国。
4. 西班牙内斗壮大了 Cortés,也差点毁掉他
Velázquez 派 Pánfilo de Narváez 带着一支比 Cortés 初始远征队更大的军队,前去逮捕这名叛将。Cortés 击败了他,随后把兵变重新包装成机会:“我们为什么要打?整个帝国都在我手里。”Narváez 的大多数部下倒戈,成为 Cortés 的增援。
Cortés 离开期间,Pedro de Alvarado 在一场节庆中屠杀 Aztec 贵族和战士,显然是担心他们动员起来。城内随即起义;Moctezuma 试图安抚人群时被石块砸成重伤而死——或者,Sheppard 留有余地认为,西班牙人可能在他失去利用价值后补杀了他。
La Noche Triste 演变成穿越 Tenochtitlan 堤道的灾难性突围。许多西班牙人被杀、被困或在之后遭到献祭,但 Cortés 带着少数幸存者逃出,并在 Otumba 率领骑兵冲入 Aztec 阵列,杀死极易辨认的指挥官,令其指挥控制体系崩溃,从而逃过追击。
Tlaxcalan 的庇护救了这支远征队:“如果联盟破裂,没有一个西班牙人能活下来。”Tlaxcalan 壁画至今仍把双方画成相同大小,反映出他们对这笔交易的理解:他们要求获得土地,并在 Tenochtitlan 建造一座堡垒,相信自己才是在利用 Cortés。
5. Tenochtitlan 倒在一个由原住民组成、借助西班牙杠杆的联盟手里
Cortés 带着纷纷投向他旗帜的原住民军队,回头对付 Cuitláhuac,继而对付 Cuauhtémoc。Sheppard 估计,征服者或许只占最终军队的0.5%;Totonacs、Tlaxcalans、Chalco 各邦以及其他中部美洲民族,把这场战役视为对 Aztec 统治的清算。
围城战把外来技术与惊人的本地后勤结合起来。西班牙人用绳索垂入 Popocatépetl 火山口采集火药所需的硫磺,同时让人力搬运工把预制的轻型战船运过山脉;船只在 Lake Texcoco 组装后,Cortés 便控制了水面。
Tenochtitlan 于1521年陷落,距 Cortés 进入这个约600万人口的大陆帝国约2年半。征服者保留了大量既有等级结构,“斩首地方贵族”,再把自己插到权力顶端——这成为一个可复用的模式,但在政治结构更分散的地方效果较差。
6. Pizarro 复制了打法,并完善了捕获最高统治者的陷阱
Francisco Pizarro 是曾与 Cortés 见过面的远房表亲,他把这套蓝图带到了南方:建立沿海基地,深入内陆,找到最高统治者,再把他抓住。Pizarro 抵达时,Huayna Cápac 已于1525年去世;在随后爆发的内战中,Atahualpa 击败 Huáscar,但尚未在 Cuzco 登基。
尽管使者警告这168名陌生人可能在睡梦中被烧死,Atahualpa 仍把他们视为机会。一个西班牙骑手在他面前几乎贴脸停下后,Atahualpa 处死了那些因受惊而退缩的廷臣,派出数万人封锁退路,并按照自己的条件进入 Cajamarca。
Pizarro 等到 Atahualpa 的随从进入一处狭窄庭院后,才释放大炮、火绳枪和骑兵。对 Inca 军队规模的估计从数万到接近10万人乃至更多不等;数千人、可能接近1万人死亡,而西班牙人唯一的伤者是 Pizarro,他在抓捕 Atahualpa 时意外割伤了手。
火器的实际杀伤力有限,但轰鸣和烟雾让新来者看起来像能掌控雷电。随后,马匹把震撼转化为恐慌:人群向墙边挤压,直到墙体被撞开;骑兵追杀逃兵,夜幕降临才阻止了屠杀。“胜者是逃跑。”
Atahualpa 并非无力应对,而是具备适应能力:他很快学会西班牙语,会打牌、下棋,或许一直在等待动员自己人的机会。他提出用堆到指定高度的金银换取释放,可能是相信 Pizarro 的承诺,也可能以为一个统治者会以荣誉对待另一个统治者。Pizarro 得到自己想要的一切后,用绞刑将他处死。
7. 原住民军队的适应速度,比征服神话所承认的更快
Dwarkesh 的疑问很直观:为什么数万人无法冲垮几名骑兵?Sheppard 指向制度性要求。欧洲人知道,训练有素、装备长矛的步兵可以阻挡骑兵;但要形成这种阵列,需要合适的武器、集体操练和代代相传的 doctrine,而两个帝国都不具备这些条件。
双方都在临时应变。Aztec 战士从屋顶作战,在建筑物之间开出足以让人通过的通道,并决堤淹没 Iztapalapa;Inca 军队则在 Ollantaytambo 拦河蓄洪。水可以抵消马匹的优势,也会让重甲变成负担。
缴获的西班牙长剑被改造成临时长矛头;Inca 的 bolas 能缠住马腿。据报道,一名 Aztec 战士把长矛顶在自己身体里,让其他人拖拽骑手;俘虏则教会原住民军队操作弩和火器。
Manco Inca 曾公开学骑马,以示范:“我们也能做到。”但适应必须跑赢社会崩溃、疾病和入侵:Aztec 的征服耗时2年半,Inca 的征服约5年。学习曲线并非不存在,而是被压缩到了不可能的程度。
这种优势也并非绝对。战役后期,西班牙人经常保留头盔,却用本地棉甲替代金属铠甲,以获得更高机动性,这说明马匹和钢铁是取决于环境的优势,而不是什么魔法。
8. 领导层的偶然决定了路径,疾病决定了终点
Sheppard 将历史的“大轮子”——地理与气候——与个人决定组成的小轮子区分开来。Cortés 一旦死亡,这场没有舵手的冒险可能随之瓦解;Atahualpa 也可能通过使者谈判,而不是走进庭院,让 Pizarro 的计划落空。
Manco Inca 的叛乱显示,战术较量一度有多么接近。Quizu Yupanqui 在狭窄的安第斯山口封死出口、投下巨石,歼灭了西班牙人的增援纵队,但 Manco 把他调往 Lima;在开阔地带,西班牙骑兵重新恢复优势,Quizu 被杀,攻势随之崩溃。
在 Cuzco,西班牙人依靠两座设防建筑幸存下来,因为狭窄通道限制了进攻者,开阔广场有利于骑兵作战,另有 Cañari、Chachapoya、Aymara、yanakuna 以及其他臣属民族加入他们。围城持续后,倒戈增加,加上不同民族的军队必须回去播种和收割,Manco 的多元军队逐渐变薄。
即使原住民军队赢下这些近距离战役,Sheppard 仍认为,天花和“一整个星系”的陌生疾病会制造人口危机,削弱帝国整合能力,并加速臣属民族叛乱。因此,欧洲沿海据点或许会扩张得更慢,但最终被纳入欧洲体系,在他看来仍是大概率事件。
9. 集权让大帝国比离散型民族更容易被斩首
Aztec 的 huey tlatoani 和 Inca 的 Sapa Inca 把忠诚高度集中到一个人身上,抓住一名统治者就足以动摇整个体系。相比之下,西班牙人必须逐个削平拥有自主权的 Maya 城市,这一过程一直持续到17世纪末,祖传语言和抵抗也在此后延续。
Sheppard 把这一点延伸到 Comanche 等马匹与火器社会,以及1876年摧毁 Custer 部队的联盟:他们可以临时集中,随后迅速分散,让对手难以锁定。要击败他们,必须进行长期的“总体战”,包括架设铁丝网、摧毁野牛这一食物基础。
帝国的规模也掩盖了少数统治多数的事实。大约10万名真正的 Inca 统治着约1000万人,正如 Aztec 统治着多个民族和语言群体一样。因此,征服者进入的并不是由单一民族组成的整体,而是早已由一个小型精英统治、从众多人群中抽取服从的体系。
10. 欧洲真正能够复利的优势,是承载知识的网络
Cortés 从 Hispaniola 的征服中吸取经验;Pizarro 则学会了 Cortés 的整套打法。相比之下,Aztec 和 Inca 生活在“封闭世界”里,甚至可能不知道彼此存在,使战术、动物和冶金技术无法在整个美洲大陆上复利。
Purépecha,即 Tarascans,展示了交流可能带来的改变。他们与南美的明显联系,与铜冶炼及其他技术交流同时出现;使用铜制箭头的密集弓箭手曾重创 Aztec 入侵军。Aztec 处于“最糟糕的两面”:他们能加工吸引西班牙人的黄金和白银,却没有足以抵抗西班牙人的铁。
Sheppard 最深的反事实推演要回到500年前。如果 Norse 殖民地能够长期存续,逐步带来马匹、炼铁技术和疾病,后来的美洲人或许会获得相应的抵抗力与军事 doctrine;如果征服者遇到装备铁甲、骑乘战马的对手,“那就什么都有可能了”。
沿海据点是另一项可复用优势。海军垄断让欧洲堡垒难以被孤立,而数代人的堡垒设计积累出连欧亚大陆主要强国都难以攻克的防御工事。Aztec 和 Inca 军队没有攻城槌、投石机,或任何可以移除这些据点的同等攻城传统。
11. 征服者的信仰,为一场由风险和黄金驱动的冒险赋予道德色彩
Aztec 战争以俘虏献祭为回报,有时甚至让战士错失杀死 Cortés 的机会。俘虏的地位还取决于质量——“4名 Totonacs 抵得上1名 Chichimec”——这种嵌入宗教的目标不可能一夜之间被放弃,正如现代社会不可能因为外星人奖励另一套 doctrine,就立刻抛弃自身信仰。
征服者大多来自贫瘠、生产力低下的 Extremadura,他们拥有战斗技能、低级贵族身份,却几乎没有财富。他们称自己为 compañeros,而不是 soldados:这些创业者共同筹集资本,押注一场高风险冒险,因为大西洋彼岸的回报看起来高于在本土与 Turks 或 Moors 作战。
宗教上的恐惧可以是真诚的,但这并不会让征服变得人道。Cortés 描述了被鲜血染黑的神庙,并说他的部下患有“只有黄金才能治好的心病”;Sheppard 认为,改宗是附加在“非常卑劣的事业”上的更高目的,而结束献祭只是殖民、屠杀、强奸和“字面意义上的种族灭绝”带来的一个有利副作用。
12. 美洲白银完成了全球化,也削弱了最初的赢家
征服之后,出现了 encomiendas、帝国官僚和 Potosí 的白银开采。贵金属横跨大西洋,再经 Manila 流向来自 China、Japan 和 Siam 的商人,换回瓷器、丝绸、香料和其他商品——为真正的全球化“补上了最后几块拼图”。
西班牙把这笔流入资金用于 Habsburg 对 Ottomans 的战争、在 Netherlands 的战争,以及对 England 的战争。但流动性本身不会创造生产能力:物价上涨,实际工资下降,大量白银支付了失败的冒险,随后继续流向 Asia。
Sheppard 把白银称为一种“诱人的毒品”。轻易获得的财富降低了建设独立银行、资本市场和工业能力的压力,而资源匮乏的 England 和 Netherlands 被迫创新。Dwarkesh 将这一机制类比为货币创造:更多贵金属可以重新分配购买力,却不会增加商品数量。
这种依赖还向全球扩散。Ming 的贸易交换高度依赖白银后,在17世纪上半叶,由于多种原因,白银流入被切断或大幅压缩;随之而来的17世纪中叶现金危机,与 Manchu 压力加剧同时发生。国家难以支付军队,Ming 最终覆亡。一座位于南美的矿山,已经影响到了 China 的政权存续。
13. 可替换的组织比血缘国家更能长期存续
原住民领导人无法同样有效地利用西班牙人的内斗,因为 Narváez、Cortés、Pizarro 和 Almagro 虽然彼此竞争,却都处于共同的 Castilian 体系内,面对生死存亡的威胁时可能重新联合。Tlaxcalan 与 Aztec 的敌意则横跨整个社会:Tlaxcalan 长老拒绝 Cuitláhuac 提出的原住民联盟,因为数十年的冲突仍让 Aztec 成为他们最主要的敌人。
Dwarkesh 对 India 的比较,把优势从武器转向治理,强调 East India Company 能够替换领导人、通过本地军队和联盟运作,并利用继承危机。Sheppard 认同这一点:Royal Navy 消除了 France 投射力量的能力,而追逐利润的公司能够行使灵活、几乎拥有全权的统治权;他特别强调对 Bengal 税收的控制,以及对地方安排的利用。
Sheppard 举出的例子是 Charles VI 和 Henry VI:精神失常起初帮助了 England 赢得 Hundred Years’ War,后来却帮助摧毁了它的优势。追逐利润的公司比血缘国家更灵活,能够授权全权、替换失败者——尽管它们的激励机制同样促成了强制、饥荒和被迫生产鸦片。
结尾保留了故事的两面。马匹、钢铁、即兴应变和斩首指挥,让微小力量赢下惊人的战斗;原住民联盟、欧洲积累的知识和后续移民,则赢得了战争。地方精英以为自己在利用西班牙人,却无法想象即将到来的人数:“我们会在自己的国家里变成少数。”
完整逐字稿
Today I’m chatting with professor and military historian Si Sheppard. I want to talk to you about the conquest of the Aztec and Inca Empires, because these are some of the most shocking events in human history, unparalleled among all the military and diplomatic achievements ever made.
A few hundred conquistadors show up to a new continent they know nothing about. Within a matter of years, they subjugate empires with millions of inhabitants. In the process of doing so, they are often winning battles where they are outnumbered 100 to 1, 1,000 to 1, and in many cases, not even taking a single casualty.
They’re doing this while upwards of 99% of their fighting forces are made up of the very natives that they’re going to subjugate. I wanted to have you on to talk about something. This episode, we’re not going to focus on it; we’re mostly talking about history here, but people think of AI takeover as this crazy science-fiction scenario.
This would not be the first time in history that an alien force, with motivations that the natives don’t understand, is able to use diplomatic cunning and technological advantages to outmaneuver and then take over a much larger and well-established order. I wanted to have you on to understand what happened here.
First, I would love to hear the stories. What did Cortés do? What did Pizarro do? How did these conquests actually go down?
Thank you. It’s a great pleasure to be here. Yes, we’re talking about the birth of our modern world, which played out between 600 and 500 years ago and created the modern globalized community that we all participate in today.
It began in the 15th century, when Europe, backed up against the wall of the Atlantic, under immense pressure from external forces and cut off from the core economic power bases of the East—the sources of the spice and silk that had driven the global economy historically throughout Eurasia—was finally forced to innovate.
Key names like Prince Henry the Navigator of Portugal worked on turning the Atlantic Ocean from a barrier into a superhighway. Generational knowledge accrued from captains reporting on tides and wind currents, and whatever land they’d managed to reconnoiter, built out the map as they went along.
That enabled them to find a way around the southern tip of Africa directly to India and therefore cut out the middleman. The Spanish, meanwhile, were heading west.
We all know the story of Christopher Columbus: “In 1492, he sailed the ocean blue.” That was entrepreneurship. This was an expedition to arrive at the Oriental markets by traveling west.
Of course, his figures were completely wrong. He was saved by the fact that, unknown to him, there was an entire continent in the place where he thought Japan, China, and the Spice Islands would be.
Initially, that was perceived, ironically, as a disappointment. But over time, it became increasingly apparent that this was a source of potential in land, wealth, and people that could be exploited.
A key turning point happened in 1511, when an ambitious Spanish nobleman, Diego Velázquez, seized control of Cuba. He sent out expeditions from this power base to explore the coast of what we would call Mesoamerica, or Central America.
Later, in 1518, he assigned that task to a man with whom he’d had a somewhat tempestuous relationship: a man named Hernán Cortés. Cortés had arrived in the New World, in Cuba, in 1511.
He had some legal training, so he served as a notary and worked his way up to being alcalde, or chief magistrate, on Cuba. But he had much greater ambition.
He took this warrant from the governor and ran with it. He began recruiting men to pursue a much wider and more ambitious goal: not just to explore the coast, but to penetrate into the interior, find out what was there, and seize control of it.
When the governor realized what Cortés was up to, he tried to stop him. There’s this great moment on November 18, 1518. Cortés arrived at the waterfront just as he was getting into a boat to go out to his ships offshore.
The governor called out to him, “What are you up to?” Cortés assured him, “Don’t worry. I have this all under control.”
But, of course, the governor had lost control at that point. Now it was Cortés’s expedition.
This is the background. Again, as you say, he was literally going off the side of the map. He was entering terra incognita, unknown to Europeans previously.
His political antenna, honed by years in the islands, enabled him to appreciate at a very early stage that there was a significant imperial power with hegemony on the mainland, and that its subject peoples chafed under the authority of whoever this lord or imperial power was.
He arrived in the lands of the Totonacs, who had recently been incorporated into the imperial orbit of a people who called themselves the Mexica—hence Mexico, as we know it—but who had come down to history, based on their mythical origins in a land called Aztlán, as the Aztecs. For simplicity’s sake, that’s what we’ll refer to them as.
The Totonacs resented this authority, as all subjugated and subordinated peoples do, and they saw the arrival of these outsiders as a potential opportunity to throw off the authority that had been imposed on them.
Having established this relationship with the Totonacs, Cortés began to march inland, and he entered the territory of the Tlaxcalans, who, like an autoimmune system, immediately rallied to defeat him and expel him from their territory.
But he fought them to a standstill for such a period of time that the Tlaxcalans and he arrived at a new kind of arrangement. The Tlaxcalans again appreciated his strength, his power, and his potential.
They swung over to his side and would henceforward serve as guides and reinforcements for his expedition deeper into the interior.
Can we pause here and talk about the numbers? How many men had Cortés brought with him?
Even the Tlaxcalans had much larger numbers than Cortés did. So even the standstill is an impressive military achievement, especially because he’s fighting without native support. What are the numbers even at this point?
A few hundred on Cortés’s side and multiple thousands on the Tlaxcalans’ side.
It’s at this point that the critical technological differentials between the Old and New Worlds really begin to come into effect. The classic text that got me invested in this whole scenario in the first place is Jared Diamond’s book Guns, Germs, and Steel.
He enumerates in the title those critical advantages that the Spaniards had. Guns, in reality, weren’t so significant. Once the native peoples got over the shock value, they appreciated that, given the very slow reloading times involved in firearms at that time, they weren’t so significant as assets on the battlefield.
But steel was critical. Local weapons were carved from wood and stone, and from obsidian—that volcanic glass which is razor-sharp when honed to a point and quite dangerous as a slashing weapon.
But against the steel armor, and especially the steel helmets that the conquistadors were wearing, it was much less effective. The conquistadors were drawing on military traditions of the Old World that went back generations, incorporating long Toledo steel sword blades.
They used those as thrusting weapons to take out indigenous warriors who were coming in with cut-and-slash weapons, which, of course, opened up the side of the body to be taken out very early.
The combination of the technology with generations of inherited military training and skill meant that the conquistadors had that critical edge on the battlefield.
Now, they weren’t invincible. Cortés was again playing those mind games. He was taking casualties, and he was careful to bury his dead underneath the houses that they were sheltering in so the Tlaxcalans wouldn’t be aware that they were even having some successes in hand-to-hand combat.
It was as much a mind game as it was a physical game.
The ultimate weapon, of course, that the conquistadors brought with them was their horses. I cannot overemphasize how vital the horse was to the conquistadors once they entered the interior of the American continents.
They had the external asset of sail power, which enabled them to land anywhere they wanted on the coast. But in the interior, the horse was decisive.
There were no native equivalents. The horse originated in North America, but it had subsequently died out. The local peoples had not just no horses, but no beast of burden generally.
That was not integrated into their economies, their ways of life, or their military. The Inca, whom we’ll discuss in a moment, did have one, which was the llama.
When they campaigned, trailing for miles behind their armies would be these endless baggage trains of pack animals—llamas.
The Aztecs had no equivalent. Their only domestic animals were the turkey and the Chihuahua. Speaking of dogs, the conquistadors also brought these big war mastiffs—fighting dogs that wore armor and were trained to take down men. Again, imagine the terrifying impact that would have had on the Indigenous people.
But the horse was the critical asset. In an attack, you could blast through any native formation that didn’t have the weapons, training, or discipline to stand up to massed shock cavalry. If things were going badly for the conquistadors, they could retreat much faster than, of course, their enemies could chase them.
The Tlaxcalans appreciated all these assets coming together, and they saw this as their opportunity. They were the holdouts, the last remaining major entity in Mesoamerica that was still able to go toe-to-toe with the Aztecs. They’d been completely surrounded. The Aztecs were upping the ante every year with these ceremonial flower wars, which were becoming more and more obviously wars of conquest. The Tlaxcalans had been cut off from the coast and from sources of salt, so they were being pushed to the brink.
This was a Hail Mary for them: “If we ally with these outsiders, these strangers, who are just few in number after all, we may have some potential way to break out of this strategic trap that has been imposed upon us.” They lean over to Cortés’s side, and they travel with him to Tenochtitlan, the capital—the glittering jewel in the midst of Lake Texcoco, the capital of the Aztec Empire.
Again, this is a dramatic moment, when Cortés passes along the causeways into the city and encounters Moctezuma II, the huey tlatoani, as he was called—the Great Speaker, the emperor of the Aztec Empire. These 2 worlds come together at that moment. The interface between them was Cortés’s interpreter-mistress, Doña Marina, or Malinche, as she became known, who was translating from one side to the other. The dialogue that occurs then is one of those great tipping points in history.
What was the perspective of Moctezuma II?
He was aware Cortés was coming. This was his empire. He had envoys, emissaries, scouts, and spies everywhere. They were reporting back to him: “Something has washed up on the shores of our empire, and it is determined to meet with us.”
He initially bargains with Cortés, urging him to leave. He provides him with precious gifts, which, of course, just inflames Cortés even more. Once he’s got hold of Aztec gold, he’s just determined to go all the way to the center.
Moctezuma continues playing this double game. His advisors, his council, urge him not to allow Cortés to proceed to the capital. His own brother, Cuitláhuac, tells him, “If you allow this man inside your house, he will take your house away from you.”
But Moctezuma proceeds, and for that he’s been condemned by generations of historians. This was a mistake—to bring the conquistadors into the heart of the empire itself. I actually think that was his best option, whether he was aware of it or not, because it was better for him to have Cortés as his guest within Tenochtitlan than it was to have Cortés, this random element, loose within his empire, talking to the subject peoples and possibly inflaming them against central authority.
He felt perhaps that Cortés was what he said he was: an envoy from a great emperor on the far side of the vast ocean. Cortés, again with the mind games, had no warrant to say he was a diplomat or ambassador for anybody. He kept telling anyone who’d listen, “I speak for the mighty Charles V, the Holy Roman Emperor.” Of course, Charles V had no idea who Hernán Cortés was. Cortés, again, is just winging it—just incredible improvisation here.
For a moment, there is stasis. The great turning point comes when word arrives from the coast that one of the Aztec regional military officers, on his own initiative, has taken action against the conquistadors left behind on the coast—the ones with the Totonacs—and some of them have been killed.
Cortés seizes this as his pretext. He marches into the palace of Moctezuma II, the Aztec huey tlatoani, and tells him that, for his own safety, he is now being taken into the protective custody of the Spanish and should come with him, or else there will be violence.
This is the moment when Moctezuma’s entire worldview just collapses. Nobody had spoken to him like this before. His psychology just disintegrates at that point, and he meekly allows himself to be led away. He tells his people, “Don’t resist. I don’t want bloodshed. I will pass with these strangers.”
Then, once Cortés has rounded up the officers from the coast responsible for turning on his men there, he has them, in front of the emperor and the entire court, burned alive—a form of punishment totally unknown to the Aztecs. They watch this in grim silence.
Once Cortés has seized the emperor himself, once he has Moctezuma, he already has the empire. He governs through what is increasingly becoming his puppet. Moctezuma seems to have fallen almost under the spell of Cortés—the classic Stockholm syndrome. He gives him a grand tour of the city.
Cortés, again in a subtle flex of his power, has brigantines, small sailing boats, built. He takes Moctezuma with him on a sailing cruise on Lake Texcoco, and the emperor is astonished at this new technology of using the wind to sail on the water.
Having the emperor was the key. The emperor’s mistake wasn’t inviting Cortés into the city. It was making himself vulnerable by staying there in an adjacent palace. If he had gone to some further location, made some excuse—a pilgrimage or an expedition of some kind—and had ruled through subordinates, Cortés would’ve been baffled. He couldn’t go chasing after the emperor. That would be obviously too provocative.
But without the emperor there, Cortés would have had his options extremely limited. I don’t know what he would’ve done in that circumstance. But because Moctezuma stayed in his capital, he made himself the target. Once he was taken, this was the key to controlling the entire empire at that point.
Obviously, the story continues from there with La Noche Triste. What people might not appreciate about what happened here—in both the Pizarro story of the Inca Empire, which we’ll talk about later, and in the Aztec story—is that in both cases the Spanish were themselves divided and, in fact, fighting each other.
So maybe you should tell the story of how Velázquez sends another expedition to capture and arrest Cortés for going beyond the prerogative of his mission.
We left the governor on Cuba, of course, fuming. He rallies another expeditionary force because Cortés is stealing his thunder. He sends this under Pánfilo de Narváez, a larger force than the one Cortés brought with him originally.
This lands on the coast. Cortés appreciates that he has to move, so he leaves one of his subordinates, the hot-blooded Alvarado, behind in charge in Tenochtitlan, takes as many men as he can to the coast, confronts de Narváez, and defeats him in a minor battle.
Again, diplomacy wins over the entire expeditionary force that the governor had dispatched. He tells them, “My friends, why are we fighting? We have the empire at my disposal. Join with me and we can share in the riches.” So he wins over the vast majority of this new force. It effectively becomes reinforcements, and he marches back to the capital.
He finds the mood has turned against him. The problem with being in charge is that you can’t be everywhere. His subordinate, assuming that the Aztecs were mobilizing against him, decided on a preemptive strike.
There was a festival. The aristocracy, particularly the warrior caste, were celebrating, and Alvarado just descended on them and massacred everybody. The survivors rally the population.
When Cortés returns, he finds himself effectively under siege. The people are so appalled now with the failure of their huey tlatoani that when he tries to pacify them, they throw stones at him. Mortally wounded, he either dies or the Spanish finish him off, because he’s no longer of any use to them.
Now Cortés is trapped in Tenochtitlan. He determines to break out, and that is, as you say, La Noche Triste, the Tragic Night, because so many of his men are left behind. They’re either killed as they try to escape the city across the causeways or forced to retreat back to the palaces, where they’re taken alive and subsequently sacrificed.
Cortés gets away with a minority of the troops still at his disposal and makes it back to Tlaxcalan territory. That was the critical aspect—the 2 features of the entire campaign. One, he has enough strike power with enough horses to defeat the Aztecs when they try to finish him off at the Battle of Otumba.
They feel he’s on the run. They have the numbers. The conquistadors are dragging their tails between their legs as they flee. Cortés himself is grievously wounded. “We can finish them off.” They had the numbers. They were winning.
But again, Cortés identifies where the Aztec general is. He rallies enough horsemen to blast through the Aztec ranks and take out their command and control. The Aztec army disintegrates, and the Spanish are able to flee.
The battlefield advantages—their horses, their steel—were critical, but just as critical was the diplomacy. If the Tlaxcalans had turned on Cortés at that point, he would’ve been finished. Not one Spaniard would’ve survived. None of them would’ve made it back to the coast.
But the Tlaxcalans, for their own reasons—not out of any generosity or humanitarian impulse to welcome back the conquistadors—still see, “We are committed to these people and to our alliance.” So they give Cortés shelter.
He recovers physically, begins to rebuild his strength, and is determined to go back to Tenochtitlan for round two: “This time we’re not going to be indulging diplomatic niceties.”
The Tlaxcalans have their own perspective on this. If you go to Tlaxcala, the territory today, the governor’s mansion there has murals on the wall, and these depict Cortés and the conquistadors from the Tlaxcalan point of view. It’s fascinating to look at how the relationship is not between a superior and an inferior. It’s between equals.
You see them depicted at the same scale, engaged in diplomacy between partners, not between subordinates and dominant figures. The Tlaxcalans drove a hard bargain: “We want territory carved out of the Aztecs. We want our own fortress in Tenochtitlan after this is over.” They saw this as them using the conquistadors, not the other way around, which is very important to bear in mind.
The Aztec Empire, from a distance, if you look at a map, seemed impressive. But this was an imperial construct, and not just the remaining independent entities like the Tlaxcalans, like the Tarascans, who we can discuss later, were hostile to the Aztecs. So were so many of their subordinated peoples.
The Totonacs on the coast, the Chalco states on the shores of Lake Texcoco—they chafed under Aztec hegemony and authority. They too saw the conquistadors as an opportunity to finally shrug off the authority and the demands of the Aztecs, and get revenge in a lot of ways.
Cortés builds up for the final campaign against Tenochtitlan, against the new huey tlatoani, Cuitláhuac, and then, after he died, his brother, the last of the huey tlatoanis, Cuauhtémoc. He has indigenous people flocking to his banner from all over Mesoamerica. He emphasizes that he’s still in the fight. He still has those advantages.
More reinforcements are arriving at the coast, and they’re being integrated into the conquistador army. But of the force that marches on Tenochtitlan, the conquistadors were maybe 0.5% in raw numbers. The overwhelming majority were other Mesoamerican peoples who see this as their final reckoning with the Aztecs.
This is the integration again of the technology with the diplomacy. Cortés knows that to take the city, he has to control the lake. Again, the innovations: They need sulfur for their gunpowder. Their guns are useless without gunpowder.
So an expedition goes into the mountains to the volcano Popocatépetl, and they dangle with ropes inside the caldera of the volcano, scooping out the sulfur they need as the critical ingredient for their gunpowder.
Another one builds prefabricated brigantines—boats—in their different sections, and then has untold numbers of porters, human load-bearers, bring these prefabricated pieces over the mountains to the lake. They’re assembled and let loose in the lake, and now they have control over the lake.
Bringing together the technology and the innovations with the local manpower, this is the force directed against Tenochtitlan in the final battle.
I actually didn’t know those stories. That’s crazy. One of the ways in which, to the extent people are even aware of the story, they might not understand what actually happened is that they have this model of the Aztecs or the Incas as this cohesive single nation.
A better model might be something like: Imagine Russia and Ukraine have been doing trench warfare for 100 years. Imagine the animosity, and then also the Russians are taking tens of thousands of Ukrainians and doing human sacrifices with them. Then some foreign force comes in and says to the Ukrainians, “We can help you march into Moscow.” I think they’d have pretty decent odds of getting some agreement there.
The old phrase is, “The enemy of my enemy is my friend,” and in diplomacy and war, that’s always very true.
I don't think I actually appreciated the ambition of Jane Street's intern projects until last week, when I got to see some of them for myself. For example, one intern spent part of his summer researching LLM memorization, figuring out how to quantify and reduce it without hurting out-of-sample performance. This matters because whenever Jane Street evaluates a new model on historical data, they need to know that its performance reflects predictive power, not just memorization of past outcomes. Another intern built a custom activation checkpointing scheme. Activation checkpointing lets you trade compute for memory: you recalculate some activations during backprop instead of storing them all after the forward pass. This intern found a way to identify the activations that are cheapest to recompute, but that still free up a lot of memory. And this allowed his version to outperform PyTorch's native one. These are just two examples, but Jane Street has written about a bunch more. These write-ups are coming out in batches. The first few are live now, including these two, and the rest will be published in the coming weeks. If you want to read them, or if you want to apply for Jane Street's 2027 summer internships, go to janestreet.com/dwarkesh.
1. Pizarro’s conquest of the Inca
There are so many interesting questions to ask, everything from technology to diplomacy to disease to tactics. Before we get to that, just to round out the story, in many ways what’s striking about the conquest of the Incas in Peru under Pizarro 10 years later is how similar it was to Cortés’s story, how much he just followed the playbook.
I want people to have a sense of roughly what happened here, starting with the Battle of Cajamarca, which might be the most astonishingly lopsided military encounter that has maybe ever happened in human history. If you can recapitulate at least that battle a bit, and then the overall story, then we can do some analysis from there.
Absolutely. When Cortés consummates his conquest of Tenochtitlan in 1521, the last of the huey tlatoanis surrenders to him, and he occupies the territory and, most importantly, the top of the social hierarchy. The existing structure, as much as possible, is allowed to persist. The conquistadors just decapitate the local nobility and insert themselves at the top.
Now, this is the playbook that will continue to be applied, less successfully, throughout the rest of Mesoamerica because the existing political entities there aren’t so sophisticated. Nonetheless, there are rumors—there are always rumors—of lost cities of gold. More conquistadors are now flooding into the New World to seek advantage of this.
One of these is a distant cousin of Cortés named Francisco Pizarro. He met with Cortés and got the playbook, as you say, about how this is to be done. Then, in one of these conquistador business ventures, he finds the funding for men and ships and begins pushing south down the west coast of South America, crossing the equator and finally arriving in what is now modern-day Peru.
He encounters what he’s looking for: a sophisticated culture on the scale—in fact, in terms of territory, on a much broader scale than Cortés had encountered in Mesoamerica. This is the land of the Inca.
When he arrived, there was civil war. The previous Sapa Inca, Huayna Cápac, had died in 1525, and his two sons, Atahualpa and Huáscar, turned on each other. Atahualpa had just won the civil war, and he was proceeding to Cuzco, the Inca capital, to be formally enthroned as the new Sapa Inca.
That’s when word arrives to him that strangers have entered his realm. Again, we’re talking about 168 men who have pushed into the Andes Mountains and are seeking him out for reasons unknown. He encounters them outside a place called, as you say, Cajamarca, in 1532.
He sees not threat, but opportunity. Just like Moctezuma II had been advised not to treat with these people, so does Atahualpa’s envoy, who reports to him, “These are not men of good faith.”
“We can take them out. They tend to sleep together. At night, we can set fire to wherever they’re staying and just take them all out in one fell swoop.” But Atahualpa is interested in what they have to offer him. He’s seen the horses. In fact, Pizarro made a specific case of impressing the Sapa Inca with his horses.
He sends one of his key lieutenants to put on a display of horsemanship. Famously, he charges right at the Sapa Inca and all his court. The horse stops just inches from Atahualpa’s face, snorting and breathing. Atahualpa is absolutely stony-faced and professes to be unimpressed, saying, “I will meet with your master at a time of my choosing.”
After the Spaniards leave, he has all of his court, including his generals who flinched or showed fear, executed just to make the point: “We’re not to be intimidated by these people.” He sends a blocking force, tens of thousands of men, to cut off any retreat, and then he proceeds to meet with Pizarro at Cajamarca with the vast expanse of his army. There’s a saying in Peru that Atahualpa was planning to have Pizarro for lunch, but Pizarro ended up having him for breakfast.
Once he enters into the confines of a narrow, constricted courtyard space, that’s when Pizarro springs the ambush. He lets fly with all his artillery and all his musketry for the shock value, and unleashes his horses. Atahualpa himself is overwhelmed and taken prisoner at that point. This, again, is the playbook—the copybook, as you say: go to the top. Seize whoever is at the very pinnacle of the social hierarchy, and you control the entire structure.
2. Explaining Conquistador military superiority
Just so people know the numbers here, the Inca Empire overall has some 10 million inhabitants. During this first battle, where Pizarro encounters the emperor, he has some 160–190 conquistadors. I don’t think the numbers are known for exactly how many men Atahualpa had, but he’s facing off against the army that has just clinched the civil war in the Inca Empire, and it’s tens of thousands strong.
I’ve seen some numbers that are like 100,000 or 200,000, but certainly in the high tens of thousands. So, 100-something against almost 100,000. That’s the first battle. What is astonishing is that these 100 conquistadors kill—I saw some numbers that are like 10,000 of the enemy, or at least thousands of Atahualpa’s troops. They suffer 0 casualties.
This is the first encounter that the Inca Empire has ever had with the conquistadors. That must have been shocking from both sides’ perspective. If you can do some analysis here, how is it possible? How can you have a military outcome where you have literally a K/D ratio of infinity: 10,000 to 0?
The conquistadors themselves admitted that the night before that encounter, there were so many campfires from the Inca army scattered across the hills surrounding Cajamarca that it looked like the twinkling of stars at night. When they saw the number of Inca troops filing into this courtyard, they were losing control of their own bladders out of fear. They knew what the risks were.
But the shock value of that initial impetus was enough to carry them through. The Inca had never heard gunpowder weapons fired in any format before. The ancestral founder of their empire was Pachacuti, which means the thunder bearer. But to see a real-world exemplar of that must have been beyond shocking.
The actual physical damage that the cannons and arquebuses inflicted was relatively minor, but the explosion and the fact that these strangers seemed able to control the thunder must have been psychologically devastating. Then it came down again to that steel and those horses.
As you say, these are veteran warriors—the winners of a civil war, strategists at a tactical level within the framework of pre-Columbian Andean warfare. They were the top dogs, but this was something outside their entire understanding of the universe.
They’d never seen a horse before or known what it could do if you integrated a rider into the saddle with stirrups and the shock value of that charge. They had no doctrine to push back against that. The psychological impact was that they tried to flee.
They were piling up against the walls in their desperation to scramble over them, to the point where the walls finally gave way under the press of all those bodies. Some of them escaped into the countryside, and the Spaniards rode after them, just running them down as they fled. The only thing that stopped the massacre at the end was that night was falling, and the Spaniards in the darkness couldn’t continue the pursuit any longer.
It’s what happens when something totally outside the universe of even veteran warriors plays out in a way that they have no mental appreciation of, or are unable to draw on any kind of library of how to respond to the situation. The fight-or-flight instinct completely takes over, and flight was the winner in this instance.
As you say, the only casualty was Pizarro himself. He’s reaching for Atahualpa to take him prisoner, and one of his more enthusiastic comrades is slashing and manages to cut his hand as he does that. That was the only injury any of the conquistadors suffered at this critical moment.
Give me a sense of how it is that, even if they’re on horses, they’re just so impenetrable. Intuitively, you would think that if you have tens of thousands of troops, can’t you just swarm a cavalry? Many of them will die, but just pull that guy in his steel armor off the stirrups, take him down, and then kill him.
Europeans knew how to do that. The Swiss, for example, had already proved that a mounted knight could be knocked out of the saddle and defeated if you had men shoulder to shoulder, locked in place with long pikes to keep those horses at a distance and break up the impetus of their charge. But that requires, one, the technology and, two, the discipline, training, and institutional knowledge to do that.
Mesoamerican warfare was very loose in its formation, with warriors having a lot of space between them. It’s the worst thing that you can do in regard to cavalry, because the horses can take advantage of that looseness to just blast through any formation that’s coming at them.
Now, one depiction of the pre-Columbian societies is that they were somehow childlike, innocent, and couldn’t have responded. They did try to respond. It’s important to bear that in mind. At every level, both the Aztec and the Inca sought to put in place countermeasures to negate the advantages that the conquistadors had.
One of the critical examples is confined space. The Aztecs, when Cortés showed up in 1521 for round 2, drew them into their city, which was a network of islands connected by bridges and causeways. That minimized the advantages of the horses, because that’s not good horse country.
They learned to fight from rooftops and pelt the enemy with stones or whatever they could from heights. They built man-sized holes in buildings so they could slip from one to the other, where the horses couldn’t chase them. So they learned to use those kinds of advantages.
They learned the stopping power of water. Interestingly, both did this completely unconnected. They had no relationship with each other. Against Cortés, when he was taking one of the smaller cities on Lake Texcoco, Iztapalapa, the Aztecs broke the dikes in the lake and flooded the city, which took out a number of the conquistadors and their allies.
In that environment, of course, the metal armor works to the disadvantage of the conquistador. It drags them to the bottom. If they’d waited until nightfall, when the Spaniards were sleeping, they might have bagged all of them.
The Inca did the same thing later, when the conquistadors moved on Ollantaytambo. They flooded the river, allowing it to burst its banks and again bogging down the conquistador cavalry. So they were adapting.
They took captured enemy weapons. They learned to fix conquistador swords to the end of long wooden poles, improvising pike tactics. Again, without being instructed to, they just intuited that keeping horses at a distance with long spears would be a way to negate the advantages they had.
The Inca employed the bolas, which they’d used for hunting the great birds of South America, to tangle the legs of horses. In one famous incident, an Aztec warrior allowed himself to be speared by a conquistador and gripped hold of the lance as it was in his body, fixing the conquistador in place so his colleagues could swarm and take him out of the saddle. So they were trying to improvise.
The Aztecs used their captured Spanish prisoners to learn how to use captured crossbows. The Inca, when they captured Spaniards, would use them to give instruction on how to use these firearms. And Manco Inca, the leader of the Inca resistance, made a point of learning to ride a horse himself to demonstrate to his people, “We can do this.”
3. Could the natives have beat the Conquistadors?
They were trying, but the learning curve was so steep, and the timeframe to internalize foreign technology and foreign tactics was too short for them to really be able to deploy it to their advantage. This is worth emphasizing. Cortés takes over the Aztec Empire in what is now Mexico in 2.5 years: a couple hundred men, an empire of 6 million people, 2.5 years. Pizarro does the same thing for the Inca Empire 10 years later in about 5 years.
It’s insane how fast these conquests happened, and just how little time they had to adapt, even though, in principle, they could have figured out ways to combat cavalry and things. All the while, their whole social structure is disintegrating, there’s disease, et cetera. There’s all this psychological shock value.
Now, the obvious question to ask at this point, before we go to the other ones, is: if you reran the simulation again and again, and you just changed a few things here and there—changed the leader for either the Aztecs or the Spanish in these conquests—in what fraction of the simulations do the Spanish end up in control of these empires anyway, within a matter of a few years?
Because when you first learn about them, it sounds like an outrageous and impossible outcome that a few hundred men would take over empires of millions of people. When you learn more about it, you begin to think, “Well, I guess it couldn’t have been any other way.” But I don’t know if that is your opinion.
In the grand scheme of things, there are multiple wheels that define history. The grand wheels that grind slowly are geography and climate, and then the small wheels in the foreground are the individuals, the key players themselves. This is an integration of that process: the big wheels with the small ones.
Yes, if Cortés had been taken out early, which could have happened on multiple occasions, the conquistadors, leaderless and rudderless, may well have just disintegrated, and the conquest may have been aborted at that level. With Pizarro, again, Atahualpa’s critical mistake was inserting himself into Pizarro’s trap. If he had sent envoys to keep the negotiations at a distance, he may well have been able to frustrate Pizarro’s ambitions.
As the head of what remained an integrated Inca Empire, he may have been able to use those numbers to win the campaign in the short term. When the Inca did finally turn on the conquistadors, Francisco Pizarro had seized Cuzco and stripped the temples of their gold and silver—“the sweat of the sun and the tears of the moon,” as it was called—and shipped it back to Europe.
He goes back to the coast to set up what would become the city of Lima, the modern capital of Peru. The danger with Cuzco is the fact that it’s elevated and away from the coast, which is where the Spaniards, with their absolute monopoly over naval power, have the advantage. His problem was that he left his half-brothers in charge back in Cuzco.
They provoke Manco Inca, who’d been set up as Pizarro’s puppet ruler, into outright rebellion. He rallies his people. He lays siege to Cuzco. He takes Sacsayhuamán, the great fortress that dominates Cuzco, and he has one of his generals, Quizu Yupanqui, cut off reinforcements arriving from the coast.
The Inca could win set-piece confrontations if they used their terrain and their knowledge of it to their advantage. Pizarro, from Lima on the coast, is taking reinforcements and pushing them into the interior to relieve Cuzco. Quizu is waiting until they enter narrow defiles and passes through the mountains, blocking both ends, and then using boulders and other material to just obliterate them from the heights.
More and more of these Spanish expeditions are being annihilated. At that level, when they use the terrain and their institutional knowledge of it to their advantage, the Inca are able to win set-piece battles, but they can’t seal the deal in Cuzco.
Manco makes the mistake of ordering Quizu to attack Lima. He feels, “We have the advantage now. I’ve bottled them up in Cuzco. We’ve annihilated their relief columns. Take out their city on the coast, and the problem is over.” But attacking Lima meant passing across open ground, where the Spanish then unleashed their advantage. The general is killed, and the whole assault collapses.
Back in Cuzco, yes, there’s a handful of Spaniards holed up in just a couple of fortified buildings, desperately holding on. Day and night, they’re under assault: the psychological aspect of it, the beating of drums, the chanting, and the constant rain of missiles to set their buildings on fire.
They would’ve been wiped out except for 2 reasons. 1, the open courtyards and plazas of Cuzco are good terrain for cavalry, and they still have their horses. And 2, critically, the asset through diplomacy of the local peoples—the subordinated mitimaes, they were called, or yanakuna, serfs, the defeated and subordinated people the Inca had brought forcibly within their imperial structure, chafing under those authorities—who see these outsiders as their chance to finally break free of Inca authority.
So, strangely enough as it may seem, more local peoples kept joining the besieged Spaniards during the whole Battle of Cuzco, which played out over many, many months. The Spaniards end up with more allies than they started with during this battle, because there were so many people within the Inca Empire—from the Cañari, who were from Ecuador, to the Chachapoya from the Amazon Basin, to even the Aymara, who used to be rivals with the Inca for control of Cuzco itself—who increasingly side with the Spaniards.
That local manpower was the critical asset. Without that, yes, they would’ve been wiped out at Cuzco. Again, it’s the Spaniards inserting themselves into an imperial orbit, which from a distance looks impressive with its geographic expanse and its total population, but which had been ruthlessly dictated to by a tiny elite of a hierarchy who had imposed themselves over the entire system.
Remember, only a small number of people spoke Nahuatl, the imperial language of the Aztecs. Only a small number spoke Quechua, the imperial language of the Inca themselves. It was the Inca Empire, but it was constructed from multiple different ethnicities. When they saw their chance, they took it to side with the Spaniards.
It’s worth remembering that the Aztecs and the Incas were themselves the equivalent of the conquistadors in their own world. There’s 100,000 or so actual Incas controlling an empire of 10 million people. So they are themselves an imperial force.
Going back to the question of how contingent these victories were, it sounds like you’re saying they are contingent, because you’re pointing out all these cases in which, if things had gone slightly differently, the siege of Cuzco would’ve worked, or Cortés would’ve been killed in battle.
The ultimate factor comes down to those background forces, the great wheels that grind through history. Geography and climate structure another factor. The fact that Eurasia was so stacked with domesticable animals—sheep, cows, goats, mules, pigs, and above all, horses—and human interaction in biomes with those domesticated animals created the context for the evolution of contagious diseases, endemic or pandemic, that ripped back and forth through Eurasia.
We’re familiar with all their names. That never occurred in the New World. The people there had no acquired immunity to diseases such as the big one, smallpox. But beyond that, there was a whole galaxy of communicable diseases that we’re now familiar with as being universal.
Even if the Aztecs and Inca had won the short-term, proximate victories, the longer-term demographic crisis would have undermined the functional capacity of their societies to remain integrated and to resist much longer. The pressure within them from their subject peoples, as they felt the authority of their overlords beginning to weaken, would’ve led to their fragmentation, which is the overarching cycle of pre-Columbian societies generally.
They’re extremely impressive, in fact, more impressive when you consider the disadvantages they had to struggle with. Their pyramids were built not through the assistance of beasts of burden or even the wheel, but simply through pure manpower and the application of that to construct them.
The subject peoples would have broken for freedom, and we see the recurring cycle of Mesoamerican history, for example. When Cortés arrived, Tenochtitlan was one of the greatest metropolises perhaps on Earth: beautiful, rich, and heavily populated. 100 years later, if he’d arrived in 1619 as opposed to 1519, he would’ve found a swamp with moss-covered mounds and hills rising out of it.
The parallel to that, of course, is Teotihuacan, the previous great metropolis which dominated Mesoamerica. It rose. It expanded. It attracted a huge population. It overstressed its environment, and it collapsed. I think the Aztecs naturally would’ve gone the same way.
One way or another, the Spanish, or even subsequent waves of European colonists, would’ve entrenched themselves at the coast and would have perhaps more slowly pushed inland. It’s possible that you would see a more balanced relationship between the colonists and the indigenous peoples, but I think in the longer term they all would’ve been folded into the grand European imperial framework.
We do know examples of other native forces who resisted European powers for a very long time. I think there’s some platoon or army that has just finished fighting during the American Civil War that has to go down and then fight some native tribes. Even late into the 19th century, native forces were able to resist European incursions. Of course, we know about the Comanche and so forth.
It does seem to me that maybe just because they were so centralized, you get the emperor and the whole thing falls, whereas other tribes were more dispersed.
You’re absolutely right. The key term there, as you used it, was dispersal. The vulnerability of the Aztec and the Inca was that hierarchical nature of their society and the absolute loyalty that the system had invested into whoever was atop the social hierarchical tree: the huey tlatoani for the Aztecs, the Sapa Inca for the Inca themselves.
Taking that individual destabilizes the whole system and potentially even means that it can be functionally governed through the use of intermediaries or even puppets. The dispersed peoples, as you say—the Comanche, even the Maya in Mesoamerica, whose city-states jealously asserted and defended their autonomy against each other—meant that the Spanish couldn’t take out the Maya in one fell swoop.
They couldn’t do to the Maya what they’d done to the Aztecs and the Inca. They had to reduce their cities one by one. That was a long, laborious process that took almost to the end of the 17th century to finally consummate. Even then, there was still smoldering dissent. In many ways, you can go to the highlands of Central America and they still speak the ancestral languages as their first language, before they speak Spanish.
Yes, colonizing powers can find aggressive bite-back. Just look at Custer’s Last Stand as late as 1876 here in America, the entire 7th Cavalry wiped out at the Little Bighorn because they lost the initiative. At that point, they were fighting warriors who had come together temporarily, riding horses, firing guns, and then dispersing afterward. It was very hard to pin them down.
That was often a frustrating aspect. It took a long process of what amounts to really total war—setting up barbed wire everywhere and, of course, slaughtering the buffalo to take away the basis for their culture and their food chain—to finally bring the last holdouts to heel. So it can be a long, protracted process.
The Inca and Aztecs themselves found that out. They never consummated even incorporating their entire zones within their empires. The Aztecs had surrounded and were slowly reducing the Tlaxcalans.
But to the west, in what’s Michoacán, the Purépecha people, or as they’re called today, the Tarascans, had an empire of their own, and they were able to go toe-to-toe with the Aztecs. The first time the Aztecs crossed into Tarascan territory, it was a disaster.
A key reason for that was actually technology. The Aztecs had no connection with South America. The Tarascans somehow did. We know from linguistic evidence and costume choices there was some exchange of flora and fauna, and above all, in technology.
The Tarascans could smelt metal. Like the Inca, they could smelt copper, and they used that to form the points of their arrows. Their massed archers with their copper-tipped arrows were decimating the invading Aztec forces. The exchange, if it had been on a broader scale between north and south, would’ve been potentially an equalizing force.
If the Aztecs had had llamas from South America, it would’ve been dramatically to their advantage.
There is tin in the New World. So no bronze? Why do we not get bronze with copper and tin?
They’d never made it, certainly not in Mesoamerica, where everything was stone. They had the worst of both worlds. They could smelt silver and gold to attract the greed of the Spaniards, but they couldn’t smelt iron to hold them off.
But before that, you would’ve thought that they would’ve done copper, tin—get bronze.
They did have bronze in the Inca world. If the Aztecs had had access to that, again, it would have given them a much more aggressive fighting stance.
4. The Aztecs and Incas did not learn from each other
Bronze can’t stand up against iron, but it’s better than stone. Or obsidian. This is an important part of what happens here, which is that the Europeans are learning from each other, but the natives are not learning from each other.
Cortés learned from the conquest of Hispaniola. Of course, he has a ton of improvisation in the way he approaches the conquest of the Aztecs. Then Pizarro knows all the details of what Cortés did a decade earlier and basically follows the same playbook.
It’s not clear to me that the Incas even knew the Aztecs existed. So you just have a much greater accumulation of knowledge than the other one was able to accumulate. They’re closed worlds. They were very insular in their societies.
To go further back in time, the only divergence that would’ve given pre-Columbian peoples a real long-term chance to hold off the Europeans is if we reverse the clock another 500 years back to Leif Erikson and the Norse in Greenland. They knew of the existence of North America—Helluland, Markland, and Vinland, as they called them, as they explored them. They tried to colonize the New World.
Their numbers were too few, the local resistance was too fierce, and they were forced out. If the Vikings had been able to claim a long-term presence in the New World, they may have been able to drip-feed European technology, European beasts of burden, and above all, European diseases slowly into the Americas, so that 500 years later, when the conquistadors did show up, they’d have met a people who had some resistance to European diseases, knew how to work iron, and were riding horses.
If that was the case, all bets are off.
That would be such an interesting history. What does the New World look like if the Vikings had actually set up there?
That’s very interesting.
What was Pizarro’s greatest innovation on Cortés’s strategy?
Essentially, the key to it was following the blueprint as closely as possible. Go right to the top, establish a coastal settlement—which Cortés also was very invested in—so you have a secure base to fall back to if what’s happening in the interior is not playing out. A base on the coastline was key.
Originally with the conquistadors, but more broadly with the Portuguese, British, and French subsequently, they would build those key strongholds on the coast. Because of their monopoly over nautical technology, they were effectively unable to be extricated by any local indigenous population.
That’s one thing that people tend to underestimate with the success of European expansion. At the end of the day, they had the fortresses and the long institutional knowledge of what a perfect fortress should look like: those jagged-edged star perimeters, revetments, and battlements that maximized firepower. Even Eurasian cultures, including the Qing Chinese, struggled to deal with that.
The peoples of the pre-Columbian Americas had no real chance of storming defenses on that kind of scale. The Inca and Aztecs didn’t even have siege warfare. They didn’t have siege weapons, battering rams, catapults—nothing like that. Once the Europeans dug into fortified positions, it was very hard to move them out of there.
Pizarro’s own environment was quite different from that of Cortés. The highlands of Mexico are quite elevated, but the Andes Mountains that the conquistadors were moving into—I’ve been at elevation in the Himalayas, and I was struggling to breathe with the altitude sickness. How they were able to move to those heights and then fight battles is really astonishing, with the many dozens of pounds of armor and equipment.
It speaks to their physical stamina, honed over many years of hard living, and to their core motivations: “This had better be worth it.” That’s why Cortés and Pizarro were always first among equals. They had to keep demonstrating success. They had to be the alpha dog in all circumstances, because around them were many ambitious men, some of whom had titles or claims that were just as legitimate as Cortés’s or Pizarro’s.
Cortés was always on top of that situation. Pizarro, of course, eventually lost control. He met his end as a rival faction stormed his household. He went down fighting, not against the indigenous people, but against his fellow Spaniards.
What I find interesting about these conquests is that once the emperor’s captured—Atahualpa for the Incas and Moctezuma for the Aztecs—what is it that they think is going to happen? Why are they cooperating? What is the end story in which they come out on top? Do they think that the Spanish were going to leave if they gave them enough gold? What is their endgame there?
That’s a good question. With Moctezuma II, from the moment when Cortés seized him, the records of Moctezuma reflect that he was a pitiless autocrat. He centralized all power in the aristocracy. Previously, it used to be possible to work up from outside the circle into the inner circle, but he forbade that. He was almost Stalinist in his authority over his underlings.
He was the one who was amping up the ritualistic flower wars into successive campaigns of encirclement and annihilation against the Tlaxcalans. He was, in every sense of the word, an autocrat.
Perhaps being told what to do for the first time in his life just led to a complete psychological break, because once Cortés had hold of him, he seems to have pulled a complete 180 switch and become essentially a willing puppet of Cortés. He was always trying to do what Cortés wanted in a way that would still be beneficial for his people, but would not rock the boat so much in terms of Cortés’s authority.
In the end, it wasn’t Cortés who disposed of him. It was his own people, because they realized that he had sold them out and he had to go. His being unilaterally deposed had never happened before in Aztec history. He was the first huey tlatoani to be repudiated by his own people and replaced by someone else.
But what explains Atahualpa? What did he think was going to happen? He seemed like he had his wits about him.
He did, and the Spanish accounts refer to it. He had a regal bearing and was clearly intelligent. He was adaptive to the situation. He learned to speak Spanish very quickly. He learned to play cards and chess. He was, I think, trying to integrate himself as much as possible.
At the same time, he was also reaching out to his own people. He was perhaps waiting for his opportunity to fully mobilize them. Perhaps he just felt he never quite got the opportunity to do that.
Bear in mind the deal: he walked into that room and said, “I can fill it up this high with gold and silver,” and Pizarro promised he’d be released at that point. Perhaps he actually felt that this was a man of his word. Pizarro was no man of his word, and had him garroted to death after getting what he wanted.
It may just be that he misinterpreted Pizarro as someone who was on the same level—that kings don’t do this to other kings. But he was dealing with a freebooting entrepreneurist pirate, essentially, not someone operating in good faith at all.
5. Why Spain still lost in the long run
Zooming out, it’s interesting to think about what this Spanish New World conquest really accomplished. They’re basically after gold and silver. In a weird way, they’re like paperclip maximizers who don’t really care about this indigenous culture or even the productive capacity of this new continent. They just care about these metals, which are not in and of themselves productive assets. They can’t generate wealth.
They’re basically like crypto, if you think about what gold and silver are. They’re just obsessed with this. Initially—we were talking about this yesterday—this helps fund Europe. Europe’s in a tough spot at this time because of the Ottomans and other forces. The Reconquista has just happened, so the Spanish have been fighting off Arab armies that had control over parts of the Iberian Peninsula.
They use this gold and silver to help pay for those defenses back at home. But if you think about what’s really happening here, there’s no new net wealth that has been generated. It’s just redistribution among Europeans. If they’re using bullion as currency, now the relative ratio of bullion has changed. You get inflation plus some redistribution.
It’s basically the government printing more money. That doesn’t create more stuff. At least initially, the Spanish are not getting any new productive capacity out of the New World.
What does change is that during this period, the Ming dynasty is in charge of China, and it has really messed up the circulation of paper currency. Nobody trusts it. Every time there’s inflation, they just make up a new currency, and people’s stocks of wealth are totally worthless.
Now the Spanish set up the silver mines in the New World, and they ship that silver off to China. China is then sending millions of pieces of porcelain and tons and tons of silk, spices, and fine goods to Europe—hundreds of tons of real goods, it might’ve been thousands of tons—in exchange for a medium of exchange, to make up for the fact that they don’t have a reliable means of exchange at the time in the Ming dynasty.
That is an important, interesting piece of what the function of the Spanish colonies in the New World is. It’s not generating any net new wealth. In the grand scheme of things, it’s basically helping get Chinese stuff for free, in some sense.
The conquistadors really didn’t appreciate what they’d accomplished, many of them. Some of them died doing what they did. The ones who were lucky or good lived long enough to settle down on what were called encomiendas—local estates with many of the local peoples to farm the land for them, a kind of peon serfdom.
The later iteration was the bureaucrats. Once the conquistadors had cleared the ground, the bureaucrats would arrive from Spain, and they would begin running and administering what would become Mexico, Peru, and South America generally. The conquistadors in South America rebelled against that and had to be put down by force to retain South America within the Spanish Empire.
Once that was accomplished, though, the whole process became very integrated into the Spanish imperial orbit—the first empire on which the sun never set. Once the Spanish had discovered and exploited a mountain of silver at Potosí, in what’s now Bolivia, they put the last piece of the puzzle in place for true globalization.
Initially, the gold and silver was all going east, as you say, into the coffers of King Charles V and then his son, King Philip II, for their wars of evangelical defense and expansion against the Ottomans, to keep the Netherlands under their control, and ideally, through the Armada, to bring the one true apostolic faith of Catholicism back to England.
Most of those ventures, of course, were failures. As you say, the net impact for Spain was ultimately quite negative. By infusing Europe with this enormous expansion of liquidity through the silver that was pouring off the treasure ships arriving in Spain every year, all they were doing was importing inflation and pushing prices up.
Real wages in Spain actually fell during this period because, yes, there was excess liquidity, but this meant prices for even staple goods were much higher than they had been previously. The ultimate negative effect was that the seductive drug, essentially, of having silver on tap meant that Spain never developed toward what we call functional capitalism. It never developed capital markets or independent banking systems the way they were emerging in places like the Netherlands and England during this period.
Those powers moved ahead while Spain and Portugal were left behind, didn’t really fully industrialize during the 19th century, and were left very rural, poor, and backward by the 20th century. They’re still catching up from that. So the average Spanish gain from this was quite marginal: “Yes, we can afford the fleets necessary to face off against the Ottomans at Lepanto in 1571,” which is good. But in terms of the development of the society, that really plateaued and stayed that way for hundreds of years.
The other side of the equation, as you mentioned, is China. Once the Spanish had become fully able to exploit the silver mines of South America, they could then take advantage of their developing knowledge of the Pacific Ocean’s wind currents to send those great ships west to the Philippines, to Manila, their base in the Orient. From there, they met with merchants coming from Japan, from Siam, and most of all from China, bringing goods with real practical value in exchange for that extracted silver.
As you say, the Spanish are buying goods with value using excess liquidity, and the real benefit from that is not something that’s structurally to the advantage of the country as a whole. What the conquistadors did was historically put the last pieces of the puzzle in place for true globalization. Trade is no longer trans-Eurasian or even trans-Atlantic. It’s trans-global. The networks now affect everybody at some point along the line.
The Ming found that out in the mid-1640s when there was a cash crisis, having fully transferred the basis of exchange in their empire to silver. When access to silver was cut off, or at least minimized, for a number of reasons during the first half of the 17th century, the Ming—at the worst possible time, with the Manchu at the gates—could no longer fund their armies. They couldn’t pay to put a military in place to hold them off. So the Manchus moved in at a moment of supreme advantage, blew out the Ming, and replaced them as the new hegemons over the Chinese imperial zone.
It’s interesting to contrast the Spanish, who had immediate and outrageous successes in the New World, with the English around the same time, who were setting up the colony in Virginia. There are so many letters from that time where people are complaining about the Virginia Company as literally a waste of English money and lives: “Everybody’s dying. There’s nothing to farm here. There’s nothing to get out of this.”
In the long run, of course, the British did lose control of the New World, but for a while they did gain these productive new colonies there. I don’t know the right way to think about this. There is this way of thinking about it: maybe because the Spanish had this very quick initial success, they set up a very extractive settlement, which didn’t result in net productive capacity in the long run. Whereas the British, because there was no crazy bullion floating around, were forced to build up some productive capacity, to build up the kinds of institutions that would allow them to make the most use of America, Canada, and so on.
You look at the Netherlands and England, the two latecomers to the game of imperialism, Protestant powers marginalized for that reason in Europe. The Netherlands especially has nothing: natural resources, absolutely zero. In that environment, you’re forced to innovate and think about how you can achieve capital gain and true economic expansion.
Everybody wants the quick fix, understandably. We play the lottery for that exact reason. But be careful what you wish for, because you may just actually get it. Those societies that have arrived at the quick fix, whether that’s gold or silver or monocultural crop production of some kind that gives you a monopoly on its provision, become satisfied with that. They become trapped within an environment that exists solely for that purpose, and they don’t develop beyond the essential thresholds that it allows for.
Even here in the US, we can look at the difference between the North and the South, that geographic line. Below that line, yes, you can get the quick fix. You can put all your capital into buying slaves and have them work at providing cash crops: tobacco, the original one, indigo and sugar, and of course the big one, cotton.
The North didn’t have those advantages. You couldn’t just buy land and then extract the resource from it. You had to think about how to make money. That’s why all the investment money in the North was going into things with long-term productivity: into trade and commerce, into advanced capital markets and the banking system, and of course into industrialization. That all happened in the North.
When the rupture came in the 1860s and the North and South went to war, all those advantages were with the North. It wasn’t just population, but the industrial base and the capital markets necessary for it to put in place a winning long-term strategy for actually defeating the South in that conflict. That again is the long-term lesson: having life too easy from the beginning leads to a certain—I don’t want to call it laziness, but lack of vision, perhaps, about alternatives that may, in the longer term, actually be more advantageous.
So earlier in this episode I asked Si: if you could rerun the conquest a thousand times, how often do the Spanish end up in control? What if the Aztecs had learned ironworking from the Vikings? Or the Spanish hadn't brought smallpox? Or Cortés had died earlier? Obviously, with history, counterfactuals are just thought experiments. But with software, you can actually test them. The Antithesis software testing platform runs your system through thousands of parallel histories, letting you explore any counterfactual you want. How does your software perform if a packet gets dropped? What about when the network drags, or the machine dies mid-write? Importantly, you don't have to come up with these counterfactuals. One big problem with traditional testing is that it only covers the distribution that you know. To test for a bug, you first have to imagine it. These tests are sort of like the Flower Wars. The Aztecs' success in these ritual battles against known rivals made them feel like the best military in the world, but they're still unprepared for Cortés. Antithesis solves this by steering your tests for you, injecting faults and making things as adversarial as possible. That way, your software gets tested against scenarios you'd never imagine, but that could still arise in the real world. Go to antithesis.com/dwarkesh to learn more.
6. Why didn’t the Aztecs/Incas adapt better to European warfare?
Going back to the Aztecs and Incas, one thing that’s remarkable here is just how bad their strategy and tactics often were. For example, because Aztec military conflict was based around capturing victims for sacrifice, there are many cases where Cortés himself was lying on the ground, having been knocked off his horse, but instead of just killing him on the ground and pressing their advantage, the Aztecs were trying to seize him to have him sacrificed later. This allowed him to get himself out of thorny situations.
Another huge mistake that would happen in these conflicts is that, in the traditional way in which these military conflicts would happen, the general would be garbed and plumed with all this extra decoration, which would make him easy to identify on a battlefield. If you have cavalry that can just see, “Here’s where the general is. Let’s go directly to him and kill him,” the whole enemy force will rout. It breaks your entire chain of command. You might have 100,000 troops, but then your general dies and everybody else routs.
Another example is the Battle of Cuzco: a couple hundred Spaniards defending against this huge rebellion. If the rebellion had just kept attacking at night instead of only attacking during the day, the Spaniards would have never gotten a chance to rest and would have been depleted pretty quickly. Instead, they would let them rest at night. They wouldn’t use their overwhelming numbers to do rotations and attack at different times.
Why I find this confusing is that it’s not like the conquistadors arrived at the doorsteps of a bunch of peace-loving hippies who didn’t know anything about war.
Aztec society and Inca society were organized around warfare. All adult males were trained to be warriors.
It was basically the Sparta of the New World. How do we understand how a very military-focused culture did not have the strategic wherewithal to do this improvisation? Cortés was improvising. Pizarro was doing a bunch of improvisation. Why weren’t they able to do the same thing?
There are a lot of factors, one of which is that cultural and religious aspect to it. Warfare was rewarded by an increase in status. Warriors would be recognized for bringing captives back to Tenochtitlan for sacrifice. There was even a hierarchy in terms of the prisoners: 4 Totonacs were worth 1 Chichimec, because the Chichimec were a wilder tribe to the north and fought more fiercely than the Totonacs did.
To a degree, there’s a certain overlap with European cultures. There was great advantage throughout the feudal era in taking your enemies alive as opposed to killing them, because then you could ransom them back to their families. You could come out of that ahead in terms of at least financial gain. In a way, the Aztec model makes more sense, because sacrificing your enemy means you’ll never see him again, whereas selling your enemy back to his family means he’s up for round 2. You might face off against the same guy across a future battlefield.
Even kings—the kings of France after the Battles of Poitiers and Pavia were captured and then subject to various indignities. To a degree, there was a certain level of overlap. More holistically, you’re right. Yes, the Aztecs did fight ideally to capture, not to kill.
There were multiple episodes when they did have Cortés himself under their knives, but they were so desperate to haul him off that his compatriots, sometimes sacrificing themselves, were able to rescue him. That was an aspect of their warfare ingrained in their culture, in their faith, in the religious expression of the values of an entire people. It’s difficult to tilt that within the framework that we’re talking about.
It’d be like asking people here, if we’re fighting aliens from another planet, to give up Christianity because there’s too much invested in terms of its morality and more effective combat skills would be derived from following some other faith. It was not possible to reorient an entire society in that limited timeframe.
The Cuzco situation—to use a famous film example, the movie 300. The Spartans are able to hold the pass at Thermopylae against overwhelming numbers because it’s very, very narrow. Within Cuzco, the surviving conquistadors fell back to 2 heavily fortified buildings with narrow entrances.
The streets of Cuzco are quite narrow as well, which means that even those overwhelming numbers could only be channeled down through those narrow avenues. Those could be blocked relatively effectively, even by the small numbers of conquistadors and their increasing numbers of native allies, who with their metal armor were able to put in place blocking operations that could hold those kinds of frameworks.
Beyond that, when the pressure came off, they would unleash their horses, largely through the wider plazas and then the surrounding countryside, looking for isolated detachments to take out. This effect was demoralizing on the Inca. They initially had the advantage. They were rallied by Manco: “We’re going to deal with these barbarians once and for all.”
As the frustration of the siege drags on, there are more and more defections, men slipping away at night either to switch sides or just go back to their homes and families. Again, this army is huge and very diverse, and many of those recruits are peoples who’ve been subjugated and have no institutional loyalty to the Inca. The bottom line is they need to get home to their farms to get the harvest in before the winter.
The nature of warfare in pre-Columbian America, and in Europe for much of its history, was driven by the annual cycle of planting and harvesting the crops. You need the men on their farms to do that, because if they’re not there, you face a very hard year coming up if you don’t have enough crops set aside to get you through the winter and the following year.
For all those reasons, the Inca, yes, with those huge numbers, weren’t able to really overwhelmingly apply them at the same time. If they’d caught perhaps the entire conquistador army marching through 1 of those mountain passes, yes, they may have been able to win a set-piece battle in that environment. The horses can’t charge up the steep slopes.
Both ends, if they’re blocked cleverly with boulders and with trees, mean the infantry’s not going anywhere either. You have them essentially pinned down. All the advantages would’ve been useless at that point. Metal armor won’t protect you from a 2-ton boulder rumbling from the heights right into your face.
On small scales, they were able to arrange that. But to get the entire conquistador force in 1 place at 1 time like that never happened.
So there was basically not enough time to accumulate the strategy?
Again, it’s that shockingly short, steep learning curve. There just wasn’t enough time, no.
7. Conquistador motivation
In retrospect, you have these outrageous battles with thousands of deaths on 1 side and 0 deaths on the other side. My understanding is this came as a surprise to the conquistadors as well. How were 100-odd men willing to go confront an empire of 10 million people and say, “Your job is to take this over”? It’d be like dropping 100 Marines into 18th-century England and saying, “Okay, you better come out the other end with control over Parliament.” How is this a thing that they were willing to do?
The classic push-pull factors. They came from a proud land, a new country. Spain had only come together in 1492, and they were aware their history was one of struggle, uniting the peninsula and consummating the Reconquista.
They had a proud warrior background, but little to show for it, really. Again, the quality of life, particularly in Extremadura, which is the province in Spain where so many of these conquistadors originated from, was a land of hardship. It was small farms and dusty, unproductive terrain.
They were aware of a wider world around them. Like so many men throughout history, they see their only path forward to being anything more than dirt farmers as seeking a career of high risk and potentially even fatal outcomes, but with possible great reward as well. Men have joined armies and militaries and fought in campaigns, not even their own, even other peoples’, for many centuries, millennia now, for that reason.
Then there’s the attraction of the New World. Once they’re aware that out there is a whole new land where “it’s possible for even a small man like myself to become something, to become somebody. All I have as an asset is my fighting skills.”
“Yeah, I could keep fighting in the campaigns against the Moors or against the Turks, but those are high-risk, low-return ventures. I’ll be fighting in my home waters, but what will the potential rewards be? These Turks can fight. The message I’m getting from the far side of the Atlantic is that the risks there are much lower and the potential rewards much higher.”
“It means traveling across a vast ocean. It means essentially being very self-reliant and falling in with men who are just as cutthroat as I am.”
How important is religion in the morale of these soldiers? In retrospect, we say, “Okay, they were able to take on huge armies.” But they didn’t even know that there was an empire there to take over. They didn’t know where its capital was. They’d never seen it before. They knew nothing about what alliances they would need to maneuver, what size armies they would need to face, what basic terrain and geography they would need to navigate.
I’m still trying to understand how they gained the confidence—you and your couple hundred buddies—to go and take on a huge empire. Did they just think God would make sure that they were okay? How do we understand that?
Cortés and Pizarro both had men of the cloth traveling with their expeditions to provide for their spiritual needs. Cortés and Pizarro, in retrospect, would make a great deal of this in their writing. They professed to be outraged, particularly by the Aztec cult of human sacrifice, which was integral to their society.
I don’t see any reason why that would be untrue. It would be shocking to actually see that happen. When Moctezuma invited Cortés to the top of 1 of the 2 great pyramids in Tenochtitlan, he remarks that the priests were daubed from head to foot in black clay or body paint, and the interior was black with spilled blood and stank abominably.
I don’t see any reason why they wouldn’t be genuinely mortified by that. They would take a certain degree of legitimacy from tearing down the ancient idols of these superstitious peoples and raising them up to the one true faith. You can salve your conscience in many ways by doing that: “In real terms, I’m here for what I can take, but I am performing the will of God, and therefore I have some absolution when I’m called to account at the end of the day.”
Men will sometimes seek to find a higher purpose in what are very low endeavors, which is what was playing out at that time. Again, coming to the motivation, the initial conquests were relatively easy.
The island populations in the Caribbean—what we now call Puerto Rico, Hispaniola, and Cuba—were quite low on the tech tree, were not unified, and did not have a significant military presence. Of course, on islands there’s nowhere for them to run. You could run into the mountains of Cuba, but eventually they would all be hunted down.
The feeling was, “The pickings here are pretty easy.” The enthusiastic attitude was, “Well, why would it be any different on the mainland?” Of course, they did run up against heavy fighting, and some of them, veterans of wars against the Turks, would say afterwards, “This was some of the hardest fighting I’ve ever been through.”
By that point, they’d seen that the potential rewards were much higher as well. When they arrived at Lake Texcoco, they would marvel as if we had just arrived in Atlantis—to be in this place on this lake with these cities arranged around its edges, and the biggest city of all appearing to float on the water like Venice, except even more dramatic with its high temples.
To them, this both awed them and inflamed that greed that they had. Cortés himself admitted as much to Moctezuma’s envoys. He said, “My men and I suffer from a disease of the heart that only gold can cure.”
So Moctezuma sent him feathered headdresses and all the traditional regalia. He sent him jade and obsidian, which in the Aztec world would have been symbols of great regard. Cortés was happy to put on the headdress, and he sent it back to the king.
But the little trinkets of gold that he was getting—that was the real end purpose. The local peoples would talk about how the Spanish were chattering like monkeys as they were picking up this gold, fascinated by it.
By the way, Bernal Díaz, who was on Cortés’s expedition and wrote a firsthand account of what happened afterward, says in his account that in every single town they came across—even small outlying villages of the empire—every temple and every city had tons of human sacrifice remains left over. This is an endemic part of the society that I guess must have horrified the Spanish. But it’s hard to square this with any sort of humanitarian, or even plausible, motivation on the part of the Spanish.
They were just very willing to do that—I think maybe worse than in almost any other European conquest ever. The Spanish in the New World just massacred huge swaths of innocent women and children. Literal genocides, intentional genocides, not just disease. Crazy amounts of rape and assault. There wasn’t a sense of, “We’re freeing these people from the shackles of oppression,” or at least there’s no plausible story you could tell where that’s what you’re doing.
They would argue that in the long term it’s in these peoples’ interests. But of course, in the short term, as you say, the accounts are unambiguous about this: throwing men and women to those huge hunting dogs that they brought with them for sport, to watch them being torn apart. They could rationalize that in Mesoamerica in reference to that cult of sacrifice, which was endemic and ingrained into the mentalities of those people.
There was a regular cycle of sacrifice, and that would peak according to particular crises, major campaigns, or the like. There are accounts—again, these are distorted accounts—of an almost industrial level of human sacrifice, that the parade of prisoners who’d been drugged to keep them pacified stretched from the pyramid complex all the way through to the causeways. One after the other, they’d be brought up to the top of the pyramids, to the temple complex.
Four priests would each take an arm and a leg, while a fifth one would use an obsidian blade to open an incision and pull out the heart, which they’d offer to the gods. I’ve been to those pyramids, the ones at Teotihuacán. The steps leading up are very, very narrow. You almost have to walk up sideways, deliberately so, because when the heart had been taken out and burned, the body would be tumbled off the far side, and the steps were so steep as to allow it to tumble all the way to the bottom.
Then the warrior who’d taken that prisoner would take the flesh home to be consumed. It was the consummation of his victory as a warrior to take home—literally internalize—the defeated enemy. This was, as you say, a cycle that the world is better off without. I’m not going to make any excuses for it. But the motivations of those who did that were not selfless.
It was, at best, a beneficial side effect, window dressing on a process of colonization and even literal genocide. It had even less validation in South America, because there was no such tradition at all. The Inca would very occasionally take a virgin sacrifice into the high mountains, where she’d be drugged, and you can still find the mummified corpses of these girls, but that was very rare and very specific. There was no ingrained culture of mass human sacrifice at all.
Here’s a question I find very interesting. Why is it that the Spaniards are able to weaponize the divisions between the different native forces to their own advantage, but the natives are not able to do the same with the Spaniards? We know there were significant divisions among the Spaniards. Literally, there’s a much larger force that is sent over to arrest Cortés.
Similarly, we didn’t get into this much, but in Pizarro’s expedition, his second in command, Almagro, is pissed off that Pizarro is getting all the spoils. He comes back, lays siege to Cuzco after Manco Inca has laid siege to Cuzco, and captures it. They were literally fighting in multiple cases in both these expeditions. The Spanish are fighting each other while they’re taking over a much larger empire. Why is it that Manco Inca or Moctezuma are not able to use these divisions to their own advantage to stay in power?
That’s a good question. The critical difference is that this is happening for the conquistadors within the Spanish orbit. They’re all Castilians, they’re all Spaniards, and they shared common backgrounds for the most part. Their confrontations were personal rivalries within their system.
If they had been confronted by an existential crisis that pitted them against each other, I think that would have failed. Their bottom line was that they would have united if they felt there was a common cause against them that forced them to do that. Whereas for the local peoples, these were differences between entire societies, with both external and internal factors at play.
Cuitláhuac, who succeeded his brother, Moctezuma II, as huey tlatoani after driving the Spaniards out during La Noche Triste, sent emissaries to the Tlaxcalans to build and expand their own new triple alliance, to come together as native people with a common interest against these outsiders. The Tlaxcalan younger generation thought about it. But the old men who still retained power, who had been fighting against the Aztecs for decades and saw them as, in the end, the existential threat, repudiated this possibility.
The Tlaxcalans wanted nothing to do with the Aztecs. “No, we are enemies and always have been and always will be. This is your problem, and maybe you’ll get taken out. No loss to us.” They couldn’t overcome the kind of institutional hostilities that went way, way back through their history. The only way that the indigenous people could have played the same game—and to a degree this did happen later—was to play different European powers off against each other.
But of course, the problem for the Aztecs and the Inca was that the Spanish were the only game in town. They were the only outsiders they’d encountered. If the English, French, Dutch, or even the Ottomans had been players in New World colonization at that very early stage, it may have been possible for local peoples to identify, “Okay, these are different cultures. We can play them off against each other to our advantage.” That may have been the game, but at that time, it wasn’t possible.
8. Why Mughal India also couldn't play the Europeans off each other
I know you’ve spent a little bit of time thinking about what happened in all these other episodes of colonialism as well. In India, for example, we do have many different European powers. Why was it not possible for the Mughals to play them off against each other indefinitely to keep control over India?
The Mughals peaked under Aurangzeb at the beginning of the 18th century. Subsequently, his successors didn’t have whatever you call it—the authority, the charisma, the rizz, however you want to define it—to maintain that hegemony which he’d established by almost taking over all of India.
The Mughals always, at root, had the same problem that the Manchu did when they conquered the Ming in the 17th century and built Qing-dynasty China to the greatest physical extent it ever had. They were always outsiders. They were not indigenous to the population. In the background, there was always that vague resentment that “we’re being ruled here by foreigners.”
That was okay while they were going from success to success. But when the momentum halts and it begins to roll backward, that’s when the local power brokers begin to feel to themselves, “Maybe we have more to gain from breaking away from the empire than we do from remaining within it.” Both Mughal India and Manchu China had that kind of fatal defect, as it were, coded into the ultimate basis for their authority.
So even without the Europeans, I think the Mughal Empire would have peaked and it would have disintegrated. What would have happened next would be more like a patchwork quilt of different authorities, some larger, some smaller. The Maratha Confederacy, I think, would have been a major player, but not one that could incorporate the entire subcontinent within its authority.
Of course, we look at Chinese history. It’s the constant cycle of the rise of a dynasty, its peak, its decline into anarchy, and then the rise of a new imperial hegemon in the region. That cycle would play out, I think, regardless of whether the Europeans intervened.
Specifically in terms of why the British took over at the end, in the bluntest terms, the Royal Navy rules the waves. In terms of projecting power, the Brits were able to force the French out of Canada and out of India because they controlled the sea lanes. Although the French had, in terms of population and military, a larger force, if you can’t project that force, it’s really of no value to you.
This is very interesting, because it makes sense why the British could have been one of the major powers in India, where there are the Marathas, there are the remainders of the Mughal Empire, there are many other factions, and then there’s this British outpost. They’ve gotten rid of the French, and the British have Bengal. Why is it that they were able to consolidate where nobody else was able to consolidate?
One hypothesis here is that we often talk about advantages in technology, but we don’t talk about advantages in governance or in terms of organization. The East India Company was a company.
It had a board that could fire and hire CEOs and lieutenants and whatever. It wasn’t called a CEO, obviously. It wasn’t necessarily the most competent people who were in charge of the East India Company, though they were pretty competent people—Robert Clive and his underlings.
You would have instances. For example, I think the nawabs of Bengal just before the British were able to gain control of Bengal—which is the initial tax base that they set up in order to further their conquest—illustrate this. Alivardi Khan is considered to be a pretty good ruler who was able to hold the British at bay. Then he dies, and his grandson is this kind of crazy, psychopathic guy who doesn’t listen to advice and so forth.
Because there’s this monarchical tradition across all these principalities in India, there’s just going to be, sooner or later, a bad king, and that king will not be able to stop the British incursion. There are also all these forces around these principalities where it’s, “Who are we going to lend money to? Who are we going to lend our troops to?” They realize there’s a bad king right now. The British seem pretty competent. “I’m going to make an alliance with the British instead.”
Similarly, in the case of the Aztecs and the Incas—and maybe even more so—the overwhelming majority of the troops, the forces that the British are using, are Indians, sepoys. This is an underrated thing: being able to delegate to competent people and then being able to replace them one after another if they get killed or if they resign or something. There’s not going to be some crazy succession crisis that creates this anarchy that then somebody else can swoop in and take control.
Absolutely. Just to give 1 example, the British were winning the Hundred Years’ War because the King of France, Charles VI, was insane. He was convinced he was made out of glass, for example. Then the English lost the Hundred Years’ War because their king, Henry VI, was insane, and he would just shut down for months at a time. Mentally, he just couldn’t function.
In nondemocratic environments, yes, the corporations, for the reasons you outlined—profit-driven and therefore not loyal to bloodlines or any other kind of extraneous circumstances, but just looking for the most competent leadership and a capacity to change and replace people—are much more flexible than those kinds of hierarchical states.
Even in many ways, you could argue, in democratic societies, the corporations can still outmaneuver them because they’re untied to particular loyalties, and it’s just their brand awareness that they’re trying to push.
The British and Dutch were late to the game of imperialism. You wouldn’t give them much of a chance given the differentials, but they unleashed the power of the free market. As you say, the East India Company, the English and Dutch equivalents, and the British Hudson’s Bay Company—which is really what made Canada as we understand it today—those corporations, driven by those motives and acting with almost plenipotentiary powers at vast distances, had the flexibility on the ground to take advantage of local circumstances and to insert themselves into diplomatic arrangements that had persisted for centuries with all the accumulated grievances.
Here were the fresh newcomers: “We obviously have skills at what we do.” As you say, taking control of the tax revenue of Bengal effectively took control of the entire political orbit. What can you do without taxation?
Reorient that toward the shareholders, force the local people to stop producing these crops, even if it means millions starve to death, in order to produce opium to take advantage of that. It was devastating in its impact on political structures that had no real environment where that was part of their established traditions.
Even the conquistadors, even the Vikings, if we go back far enough, these were business operations. The Vikings would be men who would assemble with whatever weapons they had and enough capital upfront to pay for boats to go raiding, making this profitable by looting churches and monasteries.
That’s what the conquistadors were. They were freebooters operating within a capitalist system. These were not desperados of the lowest of the low. Many of them had some education. A lot of them were hidalgos, which is the lowest rung of the petty nobility in Castile, who inherited titles and attitudes but not much in assets beyond what they could put up as soldiers of fortune.
They called themselves compañeros, which is colleagues or companions, not soldados. This whole operation was, if you like, the most raw, unbridled capitalism at its finest: pooling assets to derive enormous profits from very risky ventures.
9. Diplomacy was just as important as technology
Maybe to close us off, the thing I find really remarkable in these stories—we’ve talked about how lopsided these battles have been, how quickly this conquest proceeded—is that, in the grand scheme of things, the technological advantages that the conquistadors had over these empires are not that shockingly big.
As you mentioned, guns at this time are not good enough to actually be that helpful during battle, so it’s basically horses and steel weapons. In fact, I don’t know if we’ve talked about this, but toward the ends of these conquests—or the middle of these conquests—the metal is weighing them down, and it’s really hot and stuff.
So they’re even reverting to the cotton armor that the natives are using. So it’s not even the armor. It’s really just that they had better metal swords instead of obsidian blades and that they had horses. That’s enough to let a couple hundred men take over entire empires.
You can draw analogies to what might happen in the future. We don’t even have to go there. I just find it remarkable how little it took for them to be so dominant.
They could win battles. They could not have won the war, though, at the end, without the support of those indigenous allies.
So those are all the numbers.
Yes, you’re actually right. They would almost keep the helmets to protect the head, but many of them were ditching the metal armor in favor of the local stuff because that was good enough as protection against local weapons. They would not have done that and carried it back to Europe. That would have made them too vulnerable.
But here, you adapt to the circumstances. You have more freedom of mobility. It’s less exhausting wearing cotton than it is to wear metal. They would make that adaptation.
They would even sometimes, for very prized allies, again as a way of integrating them into the Spanish coalition, provide local chiefs and warlords with Spanish weapons, just to emphasize, “You’re so special to me.” This was effective in binding them together.
They were very, very clever in identifying the local subchiefs beneath the Aztec layer of authority who would be receptive to the idea of, “Why are you taking orders from them when you get a better deal from us?”
They knew, for example, that the Aztec Empire was called the Triple Alliance because it was set up in 1428 by the 1st Huey Tlatoani as a coalition between the 3 city-states: Tenochtitlan, Texcoco, and Tlacopan.
In 1516, so 3 years before Cortés arrived in Mesoamerica, the chief, or king, of Texcoco died, and his 2 sons fought a civil war over who would succeed him. Moctezuma stepped in and gave the title to 1 of those brothers. So what does the other brother do when the Spanish show up? He immediately sides with them.
His own family was on both sides of this war. This is his path to getting what he feels is his due: being the king of Texcoco. In the broader sense, “If I’m under the Spanish versus under the Aztecs, maybe these newcomers will give me a better deal.” There was that seductive quality at the elite level.
Now, what they didn’t understand—so many of them thinking they were using the Spanish to their advantage—they didn’t appreciate the numbers in which the Spanish and later Europeans would arrive. Their closed worlds didn’t allow them to think that people from such vast distances could come in such huge numbers.
In the end, as happened in, for example, Australia and New Zealand, “We’ll become the minority in our own country.” The demographic tide they didn’t appreciate in the long term would work fundamentally against them.
The analogy to AI there is so obvious it’s not worth spelling out. But that’s actually an excellent place to close. This is such a bizarre, shocking, and interesting part of human history, and I appreciate you coming on and telling us all about it.
Real pleasure. Thank you for having me.