Progress by the Numbers: Anatomy of Steven Pinker's *Enlightenment Now*
In an intellectual and media landscape often dominated by discourse on decline, crisis, and imminent catastrophes, the work Enlightenment Now, published in 2018 by cognitive psychologist Steven Pinker, stands as a provocation. He undertakes an argued and massively documented defense of modernity's founding ideals: reason, science, and humanism. Pinker postulates that these values, far from being obsolete abstractions, constitute the principal driving force of continuous and measurable improvement in the human condition on a global scale. Drawing on a considerable quantity of statistical data, presented in the form of 75 charts, the author methodically contests ambient pessimism and paints the portrait of a world in constant progress, inviting optimism founded not on faith, but on facts.
The central thesis: rational and empirical optimism
The heart of Steven Pinker's argument rests on a simple methodological premise: to objectively evaluate the state of the world, one must turn away from anecdotes, cognitive biases like negativity bias, and anxiety-inducing headlines to focus on long-term trends revealed by quantitative data. The book presents itself as a systematic empirical demonstration. On almost all indicators of human well-being, humanity's situation has considerably improved over the past two centuries. Pinker directly attributes this success to the application of reason to solve problems, to the scientific method to understand the world, and to humanism to expand the circle of moral consideration.
The author details the considerable progression of life expectancy, which has more than doubled in two centuries, rising from a global average of about 30 years to more than 70 years today. He documents the dizzying fall of extreme poverty: while it affected nearly 90% of the world's population in 1820, it now touches less than 10% of individuals, a remarkable retreat in history. Progress in health, nutrition, and access to clean water has drastically reduced infant mortality. Literacy, once the privilege of a tiny elite, has become the norm for more than 85% of the world's population. Pinker maintains that these advances are not the fruit of chance or some providential force, but the direct result of scientific innovation (vaccines, antibiotics, fertilizers), international cooperation (peace treaties, trade), and the diffusion of knowledge—principles inherited from the 18th century.
The great retreat of violence
An important section of the work is devoted to the thesis, already developed in 2011 in The Better Angels of Our Nature, of a historical decline in violence. Pinker compiles and analyzes data showing a massive, tendential decrease in violent deaths. Whether homicides, whose rates have been divided by 30 or 50 in many European societies since the Middle Ages, war victims, or genocides, the probability for an individual to die a violent death has dropped drastically.
Although the 20th century saw episodes of extreme mass brutality with two world wars and totalitarianisms, the author maintains that in proportion to world population, these conflicts were less deadly than many earlier wars. Above all, he highlights the period of "long peace" that followed 1945, during which major powers no longer confronted each other directly. Liberal democracies, according to his famous democratic peace thesis, do not wage war against each other, and the increase in their number has contributed to pacifying a large part of the globe. Even terrorism, despite the media attention it generates, causes an infinitesimal number of deaths compared to traffic accidents or homicides. Pinker extends his analysis to domestic violence, children's rights, and cruelty to animals, showing everywhere a downward trend, sign of increased sensitivity to suffering.
The continuous expansion of rights and freedoms
Parallel to the retreat of physical violence, the author highlights the continuous expansion of individual rights and freedoms. He traces the slow but certain progression of women's rights, children's rights, and those of ethnic and sexual minorities. Practices once universally accepted like slavery, judicial torture, cruel corporal punishment, and the death penalty have been progressively abolished in a majority of countries.
This evolution toward greater tolerance and expanded recognition of human dignity is, for Pinker, a concrete manifestation of humanism in action. He sees it as proof that human societies are capable of moral self-correction, using reason to question traditions, dogmas, and prejudices. Humanism, by placing individual well-being as the supreme value, provides moral justification for combating injustices and extending freedoms, while reason and public debate are the mechanisms that allow advancing these causes. The increase in leisure time, decrease in work time, and expanded access to culture and knowledge are also presented as dividends of this humanist progress.
Criticisms of an optimism judged selective
The publication of Enlightenment Now provoked an intense and polarized critical reaction. Many commentators, notably in publications like The Guardian or The Nation, accuse Pinker of "cherry-picking": he would meticulously select data that supports his thesis while ignoring or minimizing that which contradicts it. Among the blind spots most often cited is the marked rise in income inequalities within developed countries since the 1980s, which strongly nuances the picture of shared prosperity. For his critics, celebrating global average income growth while obscuring its increasing concentration in the hands of a small elite amounts to intellectual dishonesty.
The other major criticism concerns the environment. Numerous voices reproach him for underestimating the scope and urgency of systemic ecological degradations, such as climate change and biodiversity collapse. While Pinker acknowledges these problems, he presents them as technical problems solvable through innovation (what he calls "eco-humanism"), a position his detractors judge dangerously complacent in the face of existential threats. They counter that these environmental crises are precisely an unintentional product of the industrial and technological progress that Pinker celebrates, revealing a contradiction at the heart of his thesis. These critics suggest that Pinker's optimism is, at best, selective and, at worst, blind to modernity's darkest dynamics.
The controversy over data interpretation
Beyond the choice of indicators, it is Pinker's very interpretation of data that is questioned by certain academics, notably historians and sociologists. Princeton historian Jeremy Adelman, for example, has criticized Pinker's teleological and linear vision of progress, arguing that it oversimplifies excessively complex, contingent, and often contradictory historical processes. Progress is never a straight line, but a path strewn with regressions and crises. Fascism, for example, was not a simple pre-modern residue, but a product of modernity itself.
Philosopher John Gray, one of his fiercest critics, characterizes Pinker's thinking as "scientism": an excessive and quasi-religious faith in science's power to solve all human problems. This approach, according to Gray, scorns the contributions of philosophy, art, and humanities for understanding the complexity, irrationality, and tragedy inherent in the human condition. By relying massively on the Our World in Data database (an otherwise highly respected source that provides more than a third of his charts), Pinker would construct a smooth and reassuring narrative that erases the tensions and paradoxes of our era. For these critics, reducing human history to a series of ascending curves means missing what constitutes the very substance of human experience.
The relevance of a renewed defense of the Enlightenment
Despite controversies, the work poses a fundamental question about contemporary perception of progress. Pinker maintains that cultural pessimism, which he calls "progressophobia," is fueled by a negativity bias inherent to human psychology and amplified by media functioning. He asserts that this pessimism is not only an intellectual error, but also politically paralyzing. The feeling that the world is heading toward ruin can lead to fatalism, cynicism, or worse, adherence to radical and anti-Enlightenment ideologies that promise to wipe the slate clean of the present.
By defending reason, science, and humanism, Pinker does not claim the world is perfect, nor that progress is inevitable. He maintains the world is objectively better than it has ever been, and that we possess the intellectual and moral tools to continue improving it. His book's relevance, several years after publication, lies in its capacity to force readers to confront their own intuitions with quantitative data. It invites essential debate on how we measure well-being and on the narratives we construct to interpret our collective history. Whether one adheres to his resolutely optimistic conclusion or not, Enlightenment Now constitutes a documentary resource and structured plea for a rational approach to world problems, a plea whose necessity does not seem to fade. Pinker's work, through its rigor and scope, has the merit of placing debate back on the terrain of facts and reminding us that, while progress is never guaranteed, it remains a possibility to construct. In this sense, it offers a salutary counterpoint to ambient gloom, without closing debate on modernity's multiple, sometimes dark facets. Faced with rising populisms, mistrust of institutions, and debate polarization, Pinker's call to reason and humanism, though controversial, remains a first-rate intellectual contribution. His book is less a naive celebration of the present than a call to recognize past successes to better confront future problems, armed with confidence in our collective capacity to improve humanity's fate. It is, in sum, a call to enlightened action, founded on the conviction that problems, however complex, are above all problems to solve, not fatalities to endure.
