Yeah, i thought section 7 and and 17 were particularly weak. Overall it's always good to hold someone accountable for clearly false things like Section 4.

mikey

In Section 7, he expands on that speculation, but indeed, in the same way you should not trust Walker at face value, being critical of some of the speculations made by Guzey is also probably a safe bet. For the non-speculative parts, i.e. hard numbers, I do tend to agree with much of Guzey.

south_korea_ln

science

Matthew Walker's "Why We Sleep" Is Riddled with Scientific and Factual Errors

> Walker’s book has likely wasted thousands of hours of life and worsened the health of people who read it and took its recommendations at face value (Section 7).

I disagree with this speculation. My own speculation is that it caused many people to examine their own sleep schedule for the first time and consider improving it. 