How much cycling will it take to power your average television? How much food has to be grown to fuel a human to be able to cycle for a few hours a day?
Unfortunately I went full doom a recently and can see no solution that doesn't involve horrible suffering for the majority of humanity or Ninae's alien invasion complete with carbon sequestration technology from the Gods.
Derek Jensen mentioned once that people don't hope for outcomes that are within their control, but only those outcomes out of their control. So effectively hope is useless for achieving anything. Best use action as an antidote to despair.
Now now, Alien invasion, tee hee. Hey, I've seen some 'things'. I keep it to myself for no one would believe me but that's off topic.
Do you really truly embrace the 'full doom'? Crikey, I've seen and experienced communities that feed themselves, live off the grid and though true, they do not watch tv but they do collect solar enough every few days (old tech) to listen to their radio a few hours here and there.
I agree with you that at our present rate of consumption of power, energy all that, a stationary bike in each house to juice it up simply would not do. BUT, if over the next decades, we began to drastically decrease our 'suckling' perhaps, just perhaps, within a century, we'd have legs.