Hands down the all time best, Richard Dawkins on our "queer" universe: http://www.ted.com/talks/richard_dawkins_on_our_queer_universe.html http://www.ted.com/t

Hands down the all time best, Richard Dawkins on our "queer" universe: http://www.ted.com/talks/richard_dawkins_on_our_queer_universe.html http://www.ted.com/talks/richard_dawkins_on_our_queer_univer... Aubrey de Grey on aging is also pretty good: http://www.ted.com/talks/aubrey_de_grey_says_we_can_avoid_aging.html http://www.ted.com/talks/aubrey_de_grey_says_we_can_avoid_ag...