Matt Ridley:

When ideas have sex

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.

Matt Ridley

Rational optimist

Matt Ridley argues that, through history, the engine of human progress and prosperity has been, and is, "ideas having sex with each other." Full bio