Why concrete?

It’s energy intensive (~& polluting), unhealthy, and does not last.

Various other options are available now. Lime hempcrete, and various myco-based solutions, for a couple examples.

With various suppressed technologies, if de-secreted and availed, we could even be building giant forest arcologies, and even linking them up to create vast forest arcologyscapes, increasing the carrying capacity of earth into the hundreds of trillions. Not saying we should, just saying we could, and that we have so much headroom without these crooks, these rentiers, seeking to keep others down just to maintain their power over others, even if it means making themselves worse off than what they could be in real terms, in egalitarian freedom and abundance.

Also, I hear there are already sufficient number of empty housing to house all the homeless… but the hoarders do not want to avail that for good use. They want to remain complicit in the manufactured scarcity to increase their return on investment, keeping the bubble growing.