You may be referring to this TED talk by Dan Gilbert - http://www.ted.com/talks/lang/eng/dan_gilbert_asks_why_are_we_happy.html http://www.ted.com/talks/lang/en

You may be referring to this TED talk by Dan Gilbert - http://www.ted.com/talks/lang/eng/dan_gilbert_asks_why_are_we_happy.html http://www.ted.com/talks/lang/eng/dan_gilbert_asks_why_are_w...