.oO( @elonmusk & @JeffBezos could invest their billions in buying large areas of land, planting trees and similar things, rather spending it all on some big boy rockets that don't really help anybody. There are plenty of deserted areas here to terraform and re-colonize)

I don't blame anybody. Elon and Jeff are the most prominent ones. All billionaires can chip into the biggest challenge of humanity. And uhm could you name one or two examples of how Elon is moving us forward right now?