A couple of famous quotes crossed my mind.
One is attributed to Mark Twain:
"Never argue with a fool; onlookers may not be able to tell the difference."
The other is attributed to George Carlin:
"Never argue with an idiot; they drag you down to their level and beat you with experience."
It's not likely that anything I post is going to change this person's mind, and I have no desire to get into an electronic pissing match over the topic.
Suffice it to say if he's right, life will go on merrily and I will gladly say I was wrong.
Unfortunately, if I'm right, we're screwed, and I seriously doubt he will even realize, let alone admit, he was wrong.