It's called the "Flynn effect" -- the fact that each generation scores higher on an IQ test than the generation before it. Are we actually getting smarter, or just thinking differently? In this fast-paced spin through the cognitive history of the 20th century, moral philosopher James Flynn suggests that changes in the way we think have had surprising (and not always positive) consequences.

 

http://www.ted.com/talks/james_flynn_why_our_iq_levels_are_higher_than_our_grandparents.html


Via Complexity Digest