Oh, just "a mere two billion bike generators, with 8 billion people pedal- ing." That's right, as it turns out, the entire population of the earth (and then some!) would need to pedal at once to power the internet by bike generator.
How do we know? Well, we were curious, and so we did an internet search to find that a smart lady named Jane Anne Morris had already asked the question in her essay "Eat, Sleep, Click: The Bicycle-Powered Internet."
I didn't check her math, but the logic seems sound. Oh man, guys, this entreating read is  going to make you rethink some things...