The book may have footnotes, or and index, but the audiobook doesn't seem to offer any data to back up the claims of the author. Phrases like "some of the worst" or "mostly" are commonly used as the author expects the reader to take his claims as fact. He also continuously references theorems of "experts" while complaining about believing experts. Clearly, he apparently has selected the "experts" he has chosen to believe. This goes under my category of yet another "BMI" book i.e. "believe me instead".