Here's a fun twenty minute video from the always interesting TEDBlog.com and TEDTalks featuring Michael Shermer of Skeptic magazine, who demonstrates the importance of critical thinking. This video has been around for a while, but my blog has not. Hence, I'm posting a link to it now that I've thought of it.
I don't endorse Shermer's entire worldview, which is atheist and naturalist, but he is clearly a sharp mind worth listening to. My favorite part is about the alleged satanic lyrics in the backwards Led Zeppelin songs.