Genius

On Q, a local public television newsmagazine, showed a profile of local MacArthur Fellowship winner Luis Von Ahn. He is a professor at Carnegie Mellon. You might not know his name, but you are probably familiar with his invention, the squiggly script you have to copy to prevent someone from spamming comboxes on blogs, among other things. It's called CAPTCHA. I don't have it enabled because I am mostly grateful for any comments I get. And if you are in need of a new addictive timewaster, you can thank "Big Lou" for the ESP Game. If you like the party game Taboo, you'll love this.