Carl Sagan

XKCD Strip Spotlights The Awesome That Is Carl Sagan
Count me among the crowd that's thankful for Toby, Dave & Ian, who dutifully explain the for-smart-dudes-only webcomic XKCD.
I'm not saying I'm not a smart dude - I went to Syracuse, you guys - but sometimes the jokes in XKCD are a little over my head. L...