Tune Out, Plug In
If you take Wikipedia as a unit — every page, edit, talk page, & line of code, in every language — that represents something like the cumulation of 100 million hours of human thought (according to Clay Shirkyon & Martin Wattenberg).
Television-watching represents about two hundred billion hours, in the US alone, every year. That’s 2,000 Wikipedia projects a year. Americans spend 100 million hours every weekend just watching the ads.
Imagine that people replace only 1% of the their TV time with the production & sharing of online content. The Internet-connected population watches roughly a trillion hours of TV a year. One per cent of that is 100 Wikipedia projects per year worth of participation.