I quit at a fourth of the way through it. I was just so bored with it, even listening to it. I've gone to one of his talks on this very subject years ago and it was interesting and engaging. This book was neither of those things. Even as short as it was, I wasn't willing to push through the rest. And some of his asides felt a bit mean-spirited and condescending. After I decided I was done, I skimmed my physical copy and one section near the end that I noticed in particular gave me those vibes. That was another thing I never got from his talk, so this was really disappointing. Then again, the author had been disappointing in real life in the past year or so, so perhaps I'm just noticing things I wouldn't have before.
DNF at 1/4 of the book.