e/acc

AI unlocks material synthesis such that we approach your hypothetical through fusion power, silica is exceedingly abundant and we hyperbolically accelerate compute production even as efficiency forces us to ASICs, which may still remain a moat & status symbol for consumers.

maybe everyone PvPs simulated universes for whatever resembles transcendence by 2050 or 2100. 

since this is best case, we'll have automated the clockwork development to Kardashev 2.0, and the missions to Proxima Centauri will proceed, unless we spot something earlier w/ a more sophisticated deep space telescopic array.

culturally and politically, individual wealth is not going to be impressive to any human beholder with virtually free self-esteem. we will all normalize to an IQ (and EQ) of 100. the only interpersonal differentiator will be in our supervision and improvisation of the aforementioned universal simulation.

in other worse-case scenarios, Murphy's Law abides.

HF is chasing this, btw: https://huggingface.co/blog/cgeorgiaw/constellaration-fusion-challenge