This is definitely a fringe opinion. PCR is in widespread use in medicine today, and he's the only one I've ever heard of that made this claim. Mullis also ha

This is definitely a fringe opinion. PCR is in widespread use in medicine today, and he's the only one I've ever heard of that made this claim. Mullis also has said that HIV does not cause AIDS. While I'd look at his argument, I wouldn't give his opinion all that much weight just because he invented PCR.