Why our IQ levels are higher than our grandparents' | James Flynn
Watch video Why our IQ levels are higher than our grandparents' | James Flynn online without registration, duration 18 minute 41 second in high hd quality. This video was added by user TED 26 September 2013, don't forget to share it with your friends and acquaintances, it has been viewed on our site 3 million once and liked it 50 thousand people.