Amazing: Time spent on digital media has more than doubled to 5.6 hours/day since 2008.
— Erik Brynjolfsson (@erikbryn) May 7, 2016
How high can it go?#2MA http://pic.twitter.com/NCDmXdY8JG
from Twitter https://twitter.com/erikbryn
May 07, 2016 at 01:56PM
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