Jonathan Haidt on the moral roots of liberals and conservatives. Dean Kamen previews a new prosthetic arm. Blaise Aguera y Arcas demos Photosynth. Hans Rosling's new insights on poverty. Theo Jansen creates new creatures. VS Ramachandran on your mind. Isabel Allende tells tales of passion. Gever Tulley 5 dangerous things you should let your kids do.
J.J. Abrams' mystery box. David Gallo shows underwater astonishments. James Randi's fiery takedown of psychic fraud. Rick Warren on a life of purpose. Tony Robbins asks why we do what we do. Al Gore on averting climate crisis.
Susan Savage-Rumbaugh: The real-life culture of bonobos. Matthieu Ricard on the habits of happiness. Keith Barry does brain magic. Dan Gilbert on our mistaken expectations. Aubrey de Grey says we can avoid aging. Barry Schwartz on the paradox of choice.