Matt Ridley: When ideas have sex

Just came across this fascinating video on TED. Needless to say that when technological ideas have sex we can end up with the Twitters, Facebooks, iPads, iPods, iPhones, etc. etc. Enjoy.

At TEDGlobal 2010, author Matt Ridley shows how, throughout history, the engine of human progress has been the meeting and mating of ideas to make new ideas. It's not important how clever individuals are, he says; what really matters is how smart the collective brain is.