In his response Walker walks back some of the most outrageous claims he makes, like the cancer claim.
Had he put the same effort to sourcing the book and toning down the claims, there would have not been a controversy.
Had he put the same effort to sourcing the book and toning down the claims, there would have not been a controversy.
Had he put effort into ruining the success of his book by toning down his claims, expressing caveats, adding footnotes of where he was using a small study, etc, then someone else willing to take the risks of not being diligent would get the fame and opportunity to defend their book.