There are only 2 major societal problems in the world (1) how to produce a lot of energy for cheap without damaging the ecosystem (2) how to get people to susta

There are only 2 major societal problems in the world (1) how to produce a lot of energy for cheap without damaging the ecosystem (2) how to get people to sustainably value common good at least at par with individual good. Given (1), a few thousand skyscraper farms are enough to support the food needs of our entire planets population. When I did the calculation, I was surprised how little it actually takes. For (2), the simplistic pure capitalism and pure communism experiments have clearly failed but there are various "in-between" experiments running (northern Europe, Xi Jiping's China, Singapore etc) which seem to be heading to both individual and societal prosperity.