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Not that fast. Unfortunately, "Why We Sleep" appears to be rather controversial.

[1] https://guzey.com/books/why-we-sleep/

[2] https://www.wired.com/story/stop-obsessing-over-sleepyour-br...

"I study sleep. While some of walker's claims may be hyperbolic, I think they are within reason and justified by the important message he is trying to convey. Too many people have begun to forego sleep in their health choices, and he has helped raise awareness of sleep's role in our health.

Many of these criticisms are quite unfair or misunderstanding the science."

https://www.reddit.com/r/slatestarcodex/comments/dwtr0m/matt...

Maybe, but we do sleep for roughly 1/3rd of our life. Something might be in there.

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