The Sleepwalkers by Arthur Koestler

Engraving-style cover art for The Sleepwalkers by Arthur Koestler

My Review

This book, a detour from what was originally conceived of as a chapter, serves as a rational overview to the history of man's alternating conception of the universe. Basically it is three biographies: Copernicus, Kepler and Galileo. In addition to showing how these men came to their conclusions that shaped the world, we find in their discoveries a sense of the marvelous and stupid.

"The revolutions of thought which shape the basic outlook of an age are not disseminated through text books - they spread like epidemics, through contamination by invisible agents and innocent germ-carriers, by the most varied forms of contact, or simply by breathing the common air." - Arthur Koestler

I learned from this book that bias shapes the world to be what it thinks it is. Bending bias is a generational process.

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Joseph Voelbel designs learning curriculum and writes about money, systems, and meaning. Author of Pay Attention to Bitcoin (2024), a crash-course primer on sound money, Nineteen Stories (2017), an exploration of the unknown, and This Plant Will Grow (2026), a children's book about a plant that becomes a rainforest.