Why do so many people always assume that energy uses are necessarily unsustainable or scarce? It is the first part of “SOLARpunk”. You can have renewable and abundant energy.
It's not an assumption, it's a calculation. There's no way you can use the same amount of energy with solar and wind as you can with fossil fuels and nuclear. Cutting use is the thing. Anyone who's looked at the numbers of the energy budget is forced to conclude this.
the Book of Mormon is not a reliable source for scientific information