David: favourite TED talks

Most recently watched:
Denis Dutton: A Darwinian theory of beauty

Others:
Peter Reinhart on bread
Dan Buettner: How to live to be 100.
Stefan Sagmeister: The power of time off
Barry Schwartz on our loss of wisdom
Barry Schwartz on the paradox of choice
Dan Ariely on our buggy moral code.
Dan Gilbert on our mistaken expectations