Harvard psychologist Dan Gilbert, author of Stumbling on Happiness, delivered a presentation at TED about his research on the ever indefinable topic of happiness. Gilbert contends that our beliefs about what will make us happy are frequently wrong, and in this lecture he explains why with entertaining and challenging examples.
David DiSalvo is a freelance writer and research wonk who has written and lectured on topics involving public health, air and water quality, branding, education, energy efficiency, healthcare and social marketing. More info here.
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