MIT Kinect Hand Detection

And all this for mere CIF 320x240 3D cam resolution...
Put 10Mpix resulution CMOS for detection, processing power is cheep, and we have a future..

Denis Dutton: A Darwinian theory of beauty

Denis Dutton: A Darwinian theory of beauty | Video on TED.com

So simple answer to such a hard question. You simply know it is the right one...