Why the West Rules—for Now

1. Geography, Not Biology or Culture, Explains Western Rule

Biology tells us why humans push social development upward; sociology tells us how they do this (except when they don’t); and geography tells us why the West, rather than some other region, has for the last two hundred years dominated the globe.

No inherent superiority. The book firmly rejects racist theories of Western genetic superiority, citing overwhelming genetic and skeletal evidence that all modern humans share a common African origin. If Westerners were inherently superior, their lead would have been constant, but history clearly shows periods where the East led in social development, disproving any notion of a "locked-in" biological advantage.

Cultural similarities. Similarly, cultural differences, while real and fascinating, do not explain long-term dominance. Both East and West developed complex thought, art, and social structures in parallel, often responding to similar challenges with a comparable range of intellectual and institutional innovations. Phenomena like the "Axial Age" and "Renaissance" occurred in both regions, albeit at different times, demonstrating a shared human capacity for cultural evolution.

Geography as the differentiator. The decisive factor in explaining Western dominance is geography, which shapes how human biology and sociology interact with the environment. Geographical advantages, such as the initial distribution of domesticable plants and animals or later access to oceanic trade routes, provided crucial boosts or opportunities that favored one region over another at different points in history, ultimately leading to the West's industrialization and global rule.

2. Social Development: A Measure of Getting Things Done

Social development is the bundle of technological, subsistence, organizational, and cultural accomplishments through which people feed, clothe, house, and reproduce themselves, explain the world around them, resolve disputes within their communities, extend their power at the expense of other communities, and defend themselves against others’ attempts to extend power.

Defining progress. Social development is a neutral analytical tool, measuring a society's capacity to master its environment and achieve its goals. It is not a moral judgment on whether a society is "better" or "happier," but rather a quantifiable assessment of its ability to "get things done" across various domains. This objective measure allows for direct comparison across vast stretches of time and different cultures.

Four key metrics. The author measures social development using four core traits, each contributing equally to a maximum score of 1000 points in the year 2000:

• Energy Capture: The ability to extract and utilize energy from the environment.
• Urbanization: The size of the largest cities, serving as a proxy for organizational capacity.
• Information Technology: The ability to process and communicate information.
• War-Making Capacity: The ability to project military power.
  These traits are chosen for their relevance, culture-independence, and measurability across millennia.

Chainsaw art. While acknowledging the inherent subjectivity and potential for error in quantifying historical data, the author emphasizes that this "chainsaw art" approach provides a necessary framework for comparing East and West across millennia. The goal is to reveal the overall "shape of history" and identify broad patterns, rather than to achieve unassailable precision in every single data point.

3. The Morris Theorem: Human Nature Drives Change

Change is caused by lazy, greedy, frightened people looking for easier, more profitable, and safer ways to do things. And they rarely know what they’re doing.

Universal human drivers. This "Morris Theorem" posits that fundamental human desires—to minimize effort (laziness), maximize resources (greed), and ensure survival (fear)—are the primary engines of historical change. These deep-seated motivations lead to constant tinkering, innovation, and adaptation in response to changing circumstances.

Unintended consequences. Crucially, people often don't foresee the long-term consequences of their actions. Innovations aimed at immediate benefits frequently trigger unforeseen societal shifts, leading to new problems and further adaptations. This highlights the complex, often unpredictable, nature of historical evolution, where individual choices aggregate into large-scale, unplanned transformations.

Cumulative progress. Over millennia, these incremental changes accumulate. Good ideas tend to persist and build upon previous ones, leading to an accelerating rate of social development. This cumulative process explains the general upward trend observed in history, even amidst periods of stagnation or decline, as humanity continuously seeks to improve its condition.

4. The Paradox of Development: Progress Creates Problems

Rising social development creates the very forces that undermine it.

Self-defeating success. The "paradox of development" describes how advancements in social organization and technology inevitably generate new challenges that threaten further progress. For example, increased food production leads to population growth, which then strains resources and creates competition for land and sustenance.

Escalating complexity. As societies become larger, more interconnected, and more complex, they also become more fragile and harder to manage. The intricate networks of trade, administration, and communication that drive development can also become pathways for disruption, such as the rapid spread of disease or the breakdown of political stability.

The five horsemen. When these self-generated problems spiral out of control, they can unleash what the author calls the "five horsemen of the apocalypse": famine, epidemic, uncontrolled migration, state failure, and climate change. These forces, especially when combined, can turn periods of stagnation into centuries-long collapses and dark ages, reversing hard-won gains in social development.

5. Hard Ceilings and the Race Between Development and Collapse

At certain points the paradox of development creates tough ceilings that will yield only to truly transformative changes.

Limits to growth. Throughout history, social development has repeatedly encountered "hard ceilings"—thresholds beyond which existing technologies and organizational structures could not sustain further growth. The most significant of these was around 43 points on the social development index, a limit for traditional agrarian empires.

Development vs. collapse. When societies hit these ceilings, a "race" begins: either they find transformative solutions to break through, or the mounting problems lead to collapse. The Roman Empire (1st century CE) and Song China (11th century CE) both hit the 43-point ceiling and subsequently experienced significant declines, demonstrating the fragility of even the most advanced pre-industrial societies.

Transformative change. Breaking through these ceilings requires fundamental shifts, often involving new energy sources or radical reorganizations of society. The ultimate breakthrough came with the Industrial Revolution, which harnessed fossil fuels, shattering the agrarian ceiling and leading to unprecedented, accelerating growth that redefined the limits of social development.

6. The West's Early Lead: A Geographical Head Start

Agriculture appeared in the Hilly Flanks thousands of years earlier than anywhere else not because the people living here were uniquely smart, but because geography gave them a head start.

Lucky Latitudes. The end of the Ice Age, around 15,000 years ago, created "Lucky Latitudes" with abundant domesticable plants and animals. The Hilly Flanks in southwest Asia were uniquely blessed with the densest concentration of these resources, making it easier for its inhabitants to develop agriculture first, starting before 9000 BCE.

Two-millennia advantage. This geographical head start meant that Western societies (descended from theHilly Flanks) began their agricultural revolution approximately two thousand years before Eastern societies (originating in China's Yellow and Yangzi river valleys). This initial lead set the West on a path of earlier social development, influencing subsequent innovations.

Cumulative effects. This early advantage, combined with the cumulative nature of social development, allowed the West to maintain a lead for much of history. Subsequent innovations, such as the rise of cities and states in Mesopotamia, built upon this foundation, further widening the gap at various points and establishing a long-term pattern of Western preeminence.

7. The Eastern Age: A 1200-Year Lead

Around 541 Eastern development rose above Western (proving beyond all doubt that Western rule was never locked in) and by 1100 was pressing against the hard ceiling.

Disproving lock-in. The period from roughly 550 CE to 1773 CE, when Eastern social development surpassed Western, is crucial evidence against simple "long-term lock-in" theories of Western dominance. This "Eastern Age" demonstrates that Western preeminence was not predetermined from antiquity, but rather a fluctuating pattern influenced by dynamic historical forces.

Geographical shifts. The Eastern core's recovery and rise were fueled by a new frontier of rice agriculture in the Yangzi Valley, made accessible by northern Chinese migrations. The subsequent construction of the Grand Canal, linking the productive south to the northern political centers, created a "man-made Mediterranean" that significantly boosted Eastern development and trade.

Western decline. Concurrently, the Western core experienced a deeper and longer collapse following the First Old World Exchange and the Arab conquests. The fragmentation of the Roman Empire and the subsequent struggles between Byzantium and the emerging Islamic world hindered Western recovery, allowing the East to pull ahead significantly and maintain its lead for over a millennium.

8. The Old World Exchange: Globalization's Double-Edged Sword

The most important commodities being moved around in the Second Old World Exchange, as in the First, were germs.

Interconnectedness and disruption. As social development advanced, it effectively "shrank the world," increasing contact between distant regions. This led to "Old World Exchanges" where goods, ideas, and people traveled across Eurasia, but also, crucially, diseases, demonstrating the double-edged nature of increasing global interconnectedness.

First Exchange (2nd-4th century CE). The First Old World Exchange, intensified by the Roman and Han empires' expansion, merged distinct disease pools. Plagues ravaged both empires, contributing significantly to their decline and fall, as well as to the narrowing of the East-West development gap, as both societies struggled with unprecedented epidemiological challenges.

Second Exchange (12th-14th century CE). The Second Old World Exchange, facilitated by Mongol conquests and expanding trade, brought new technologies (like cast iron and gunpowder) from East to West. However, it also brought the Black Death, a devastating pandemic that caused widespread death and societal upheaval across Eurasia, further illustrating how global connections could accelerate both progress and catastrophe.

9. The Industrial Revolution: The West's Unique Breakthrough

Fossil fuel made the impossible possible.

Shattering the ceiling. The Industrial Revolution, beginning in Britain in the 18th century, was the first time a society broke through the "hard ceiling" of agrarian social development. This was achieved by harnessing the stored energy of fossil fuels (coal and later oil) to power machines, fundamentally transforming energy capture and production methods.

Technological accumulation. This breakthrough was not a sudden stroke of genius but the culmination of millennia of technological accumulation, combined with specific geographical advantages. Earlier societies, like Song China, had made significant strides in coal and iron, but lacked the unique confluence of factors that drove the British takeoff.

Unprecedented growth. The ability to convert heat into motion (steam power) revolutionized production, transport, and communication. This led to an explosive, accelerating increase in social development, dwarfing all previous historical advancements and creating a new, globally dominant Western core with capabilities far beyond any prior civilization.

10. The Great Divergence: Why Britain, Not China, Industrialized First

It was easier to have an industrial revolution in Britain than anywhere else, but Britain still had no lock-in on industrialization.

Confluence of factors. Britain's industrialization was a result of a unique combination of factors:

• High wages: Creating incentives for labor-saving machinery.
• Abundant and accessible coal: A crucial energy source.
• Strong financial institutions: Facilitating investment.
• Global oceanic empire: Providing raw materials (like cotton) and markets.
  This specific alignment of conditions made Britain the most fertile ground for the Industrial Revolution.

Atlantic economy. The Atlantic economy, a new kind of intercontinental trade network, was crucial. It generated wealth, stimulated demand for manufactured goods, and fostered a culture of scientific inquiry and technological tinkering that was less constrained by traditional hierarchies than in other regions. This dynamic environment pushed innovation in unprecedented ways.

Eastern constraints. China, despite its earlier advancements in coal and iron, faced different geographical and economic realities. Its vast internal market and cheap labor reduced incentives for mechanization, and its rulers, focused on internal stability and steppe defense, were less inclined to embrace the disruptive forces of global trade and radical scientific thought. This combination of factors meant China did not experience its own industrial revolution at that time.

11. The Great Race: Singularity vs. Nightfall

The twenty-first century is going to be a race. In one lane is some sort of Singularity; in the other, Nightfall. One will win and one will lose. There will be no silver medal.

Unprecedented acceleration. Social development is projected to increase by thousands of points in the 21st century, a pace far exceeding all previous millennia combined. This rapid acceleration implies a "Singularity"—a period of such profound technological change that it will fundamentally transform human existence, potentially merging human and machine intelligence.

Existential threats. However, this rapid development also intensifies the "paradox of development," bringing humanity face-to-face with existential threats:

• Nuclear war
• Catastrophic climate change ("global weirding")
• Pandemics
• Mass migrations
• State failures
  These "five horsemen" are now global problems requiring global solutions, threatening to overwhelm our capacity to cope.

The ultimate choice. The future is a "Great Race" between these two outcomes. The Singularity offers a path to transcend biology and solve many current problems through advanced technology (e.g., clean energy, genetic engineering, AI). Nightfall represents a catastrophic collapse, potentially leading to the end of civilization. The outcome depends on humanity's ability to manage global problems and make transformative leaps in technology and governance, with the next forty years being the most critical in history.

Last updated: February 17, 2026