Randi on proving negatives, reindeer and the World Trade Center.

I would query Randi on one issue from the talk though: the ability to prove a negative.

Here’s an interesting article from Steven D Hales, however, who asserts you can prove a negative.

Or as Stephen Law has eloquently written:
“You can prove a negative in fact (after all “you can’t prove a negative” is a negative, so, if true, unprovable).“