The Knowledge: How to Rebuild Our World from Scratch

How would you go about rebuilding a technological society from scratch?

If our technological society collapsed tomorrow, perhaps from a viral pandemic or catastrophic asteroid impact, what would be the one book you would want to press into the hands of the postapocalyptic survivors? What crucial knowledge would they need to survive in the immediate aftermath and to rebuild civilization as quickly as possible—a guide for rebooting the world?

Human knowledge is collective, distributed across the population. It has built on itself for centuries, becoming vast and increasingly specialized. Most of us are ignorant about the fundamental principles of the civilization that supports us, happily utilizing the latest—or even the most basic—technology without having the slightest idea of why it works or how it came to be. If you had to go back to absolute basics, like some sort of postcataclysmic Robinson Crusoe, would you know how to re-create an internal combustion engine, put together a microscope, get metals out of rock, accurately tell time, weave fibers into clothing, or even how to produce food for yourself?

Regarded as one of the brightest young scientists of his generation, Lewis Dartnell proposes that the key to preserving civilization in an apocalyptic scenario is to provide a quickstart guide, adapted to cataclysmic circumstances. The Knowledge describes many of the modern technologies we employ, but first it explains the fundamentals upon which they are built. Every piece of technology rests on an enormous support network of other technologies, all interlinked and mutually dependent. You can’t hope to build a radio, for example, without understanding how to acquire the raw materials it requires, as well as generate the electricity needed to run it. But Dartnell doesn’t just provide specific information for starting over; he also reveals the greatest invention of them all—the phenomenal knowledge-generating machine that is the scientific method itself. This would allow survivors to learn technological advances not explicitly explored in The Knowledge as well as things we have yet to discover.

The Knowledge is a brilliantly original guide to the fundamentals of science and how it built our modern world as well as a thought experiment about the very idea of scientific knowledge itself.

Dartnell, a UK Space Agency research fellow and award-winning science writer, specializes in the field of astrobiology, including how microorganisms could survive on Mars. It’s no wonder, then, that this renowned young scientist is fascinated by survival tactics, the underlying theme of this ambitious inquiry into how people might be able to rebuild the world as we know it if an apocalypse came to pass. As much as any writer could cover the history of technology in 300 pages, Dartnell presents a good case. His account quickly progresses from raising crops to ­making soap, shearing and spinning wool, mining coal, generating electricity, and building radios. Of course, since this is all speculation, it’s hard to predict what people would be able to scavenge and what will be left intact or who might be on earth besides yourself. Dartnell doesn’t address questions of governing this survivors’ society or how people would collaborate on rebuilding or how hopeless some will feel without Google and smartphones. Still, Dartnell’s vision is a great start in understanding what it took to build our world. --Laurie Borman