Rationality
Rationality: What It Is, Why It Seems Scarce, Why It Matters is a 2021 nonfiction book by cognitive psychologist and author Steven Pinker. The work explores human reasoning—why people often think irrationally and how logic and evidence can guide better decisions in modern society.
Key facts
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Author: Steven Pinker
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Published: 2021 (Viking Press)
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Genre: Nonfiction, cognitive science
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Subject: Human reasoning and rational thought
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ISBN: 978-0-525-56299-7
Themes and purpose
Pinker examines the cognitive tools that underpin rational thinking, such as logic, probability, critical reasoning, and scientific inference. He argues that irrational beliefs persist due to evolved biases, misinformation, and social pressures, yet contends that rationality remains a cornerstone of moral and scientific progress.
Structure and content
The book blends psychological research, historical case studies, and everyday examples to illustrate rational principles. Chapters cover reasoning errors, statistical thinking, and the relationship between rationality and human flourishing. Pinker also discusses the tension between intuitive thought and analytical reasoning, referencing classic experiments in behavioral economics and cognitive psychology.
Reception and impact
Rationality received generally positive reviews for its clarity, humor, and relevance, though some critics noted its focus on Western-centric frameworks of reasoning. It was praised for making abstract cognitive science accessible to a general audience and for defending Enlightenment ideals of reason in public discourse.