My son Matthew just called all excited about a lecture by James Randi. He said it was “the BEST” and went on about how Randi introduced Penn to Teller (or was it Teller to Penn?) and knew Richard Feynman, Isaac Asimov, and Arthur C. Clarke personally.
Randi is a scientist who has dedicated his life to debunking “paranormal, pseduoscientific, and the supernatural.” Matthew was pretty impressed… and passed his website (http://www.randi.org/) on to me… presumably so I could pass it on to you.