Wishful thinking with no basis in reality. If we couldn’t use coal, we would cut down and burn trees unsustainably long before we magically manage to invent renewable energy tech without all the benefits of modern infrastructure.
> There's really no reason to use fossil fuels.
Except for the critical dependence on them in almost every aspect of the economy sure.
> If we had to ration it to the bare essentials we'd be able to get away with using only 5% of the energy we currently use.
And how exactly are supposed to organize society into this perfectly energy constrained system?
> There's really no reason to use fossil fuels.
Except for the critical dependence on them in almost every aspect of the economy sure.
> If we had to ration it to the bare essentials we'd be able to get away with using only 5% of the energy we currently use.
And how exactly are supposed to organize society into this perfectly energy constrained system?