...dumb and dumber? If you never heard of it then check it out.
http://www.usnews.com/news/articles/2012/11/13/dumb-and-dumber-study-says-humans-are-slowly-losing-their-smarts
Now there is evidence out there that our brains have actually been shrinking ever since the bronze age.
http://discovermagazine.com/2010/sep/25-modern-humans-smart-why-brain-shrinking#.UN7X367yCSo
The observation led the researchers to a radical conclusion: As complex societies emerged, the brain became smaller because people did not have to be as smart to stay alive. As Geary explains, individuals who would not have been able to survive by their wits alone could scrape by with the help of others—supported, as it were, by the first social safety nets.
http://www.usnews.com/news/articles/2012/11/13/dumb-and-dumber-study-says-humans-are-slowly-losing-their-smarts
Now there is evidence out there that our brains have actually been shrinking ever since the bronze age.
http://discovermagazine.com/2010/sep/25-modern-humans-smart-why-brain-shrinking#.UN7X367yCSo
The observation led the researchers to a radical conclusion: As complex societies emerged, the brain became smaller because people did not have to be as smart to stay alive. As Geary explains, individuals who would not have been able to survive by their wits alone could scrape by with the help of others—supported, as it were, by the first social safety nets.