I'm particularly fond of Steven Levitt after reading Freakonomics. I enjoyed his talk on the pointlessness of mandating car seats for children and what should r

I'm particularly fond of Steven Levitt after reading Freakonomics. I enjoyed his talk on the pointlessness of mandating car seats for children and what should really be done to improve their safety: http://www.ted.com/index.php/talks/steven_levitt_on_child_carseats.html http://www.ted.com/index.php/talks/steven_levitt_on_child_ca... I also like the SeaDragon/Photosynth demo (along with various other talks that have come from Microsoft Research) http://www.ted.com/index.php/talks/blaise_aguera_y_arcas_demos_photosynth.html http://www.ted.com/index.php/talks/blaise_aguera_y_arcas_dem...