On the "books read" section of Ev Williams' GoodReads profile.
"[Kelly Starrett] is a legitimate fantasy and sci-fi nerd. He knows [this book] inside and out." - Tim Ferriss
"Great book." - Naval Ravikant
"I like the genre of past books written about the future." - Peter Thiel
"If you read [this book] before you’ve thought about molecular anything or 3D printing, then it changes your mind." - Seth Godin