Speed: How It Explains the World

by Vaclav Smil

A data-driven, scientific account of our need for speed—exploring a wide range of topics including evolution, transportation, and technology

In a world obsessed with efficiency, perhaps nothing is valued as highly as being fast. Some of our greatest achievements include building planes that break the sound barrier and creating computers that process data at the touch of a button. With signature clarity, Smil offers accessible explanations of every major speed category, from wind erosion to hunting cheetahs, from Boeing 747s to America’s war time industrial mobilization to the speed of global energy decarbonization.

But as Smil argues in this paradigm-shifting book, speed isn’t just a metric to optimize. In Speed, Smil expands on our traditional, human-centric understanding of speed to explore phenomena of space and time, evolution, and human achievement. What was the speed of planet formation? Of the development of different life forms? What happened in the collision of humans and the limits of natural speed, and what has emerged from our incessant desire to push those boundaries?

Lauded for his“compelling, fascinating, realistic” (Steven Pinker) portraits of the modern world, Smil knows that we can’t, won’t, and shouldn’t abandon our collective need for speed. But as good devotees of speed’s eminence, we must understand it, its value, and its cost. Rich in historical and contemporary data, Bill Gates’s favorite scientist’s latest work is a comprehensive, interdisciplinary guidebook for science readers living in the fast lane.

Genres: History

368 pages, Paperback

Expected publication June 2, 2026

About the author

Vaclav Smil is a Czech-Canadian scientist and policy analyst whose work spans energy, environment, food, population, economics, history, and public policy. Educated at Charles University in Prague and later at Pennsylvania State University, where he earned his Ph.D. in geography, Smil emigrated from Czechoslovakia to the United States in 1969 following the Soviet invasion, before beginning his long academic career at the University of Manitoba in 1972. Over the decades he established himself as a leading voice on global energy systems, environmental change, and economic development, with particular attention to China. Smil has consistently argued that transitions to renewable energy will be gradual rather than rapid, emphasizing the persistence of coal, oil, and natural gas and highlighting the difficulties of decarbonizing critical industries such as steel, cement, ammonia, and plastics. He has also been skeptical of indefinite economic growth, suggesting that human consumption could be sustained at much lower levels of material and energy use. Widely admired for his clear, data-driven analyses, Smil counts Bill Gates among his readers, while colleagues have praised his rigor and independence. Known for his reclusiveness and preference for letting his books speak for him, he has nonetheless lectured extensively worldwide and consulted for major institutions. A Fellow of the Royal Society of Canada and a member of the Order of Canada, Smil remains a highly influential public intellectual.

Reviews

[Yehaskel · Rating 5 out of 5]

As good as all of Vaclav Smil's books...