That is not science. That is conjecture.
This guy is one hell of an expert. He knows more about medicine than I ever will. He's highly intelligent, at the top of his field, and has been doing this a long time.
He also lied.
Just because you're smart doesn't mean you don't have an agenda... also the one smartest man in the room may be right while a consensus of scientists say he's wrong. That has happened many times in history.