"Accordingly, they and their message are vulnerable to human biases, errors and frailties."
This is coming from the guy who recommended spritzing your meat with flax seed oil before broiling.* I've got bad news, Dr. Cordain, we're all vulnerable to human biases, error and frailties. If you think you are exempt, you really need to go look up the word hubris.
Part One of the interview. Via Matt Metzgar.
*Flax seed oil goes bad if heated, let alone broiled.