I just recently came across this dude on the internet. I found a link to his YouTube video via a Facebook discussion in which folks were arguing/discussing back and forth that Dave was wrong (trying to sell his book) VERSUS Dave was absolutely correct. I was curious to get feedback and thoughts from each of you (who is interested) about the information Dave shares (or partially shares).

https://www.youtube.com/watch?v=SD9D9rMaKss