echolocation

Neuroscientist Beau Lotto runs the audience through color and pattern illusions to show that perception is shaped by context and evolutionary history rather than being a direct readout of the world. The talk is playful and hands-on, and it argues that the brain interprets ambiguous signals.

A short TV segment on Jill Price, a woman with highly superior autobiographical memory who recalls nearly every day of her life. She describes the good and bad sides of never forgetting.