Elizabeth Gould talks about the plasticity of the adult brain and how complex experiences like parenting shape the brain.
Terry Pratchett makes the case for assisted death. Due to his illness, the body of the speech is read by Tony Ronbinson.
James Randi talks about the situation of alternative treatments in Norway.
Anthony Weiner sums up the current state of the debate over Health Care Repeal.
Ben Goldacre talks about quacks, hacks and big pharma flacks at PopTech.
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