Here’s a youtube lecture by Daniel Dennett entitled Darwin and the Evolution of “Why?”
In my opinion the lecture doesn’t actually explain the reason behind the existence of “Why?” (Why not?), but it’s a very interesting lecture anyway.
The lecture was delivered on October 23rd 2009 in Oslo. It’s approximately an hour long, followed by 30 minutes of questions. Recorded by Richard Norton. The shaky camerawork at the beginning soon settles down.
Daniel C. Dennett is Professor of Philosophy at Tufts University, USA, where he is also the co-director of the Center for Cognitive Studies.
Dennett has authored several bestselling books, including “Darwin’s Dangerous Idea” and “Freedom Evolves”. His most recent book is “Breaking the Spell, Religion as a Natural Phenomenon”.