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In reply to @dwr
7/23/2023

Energy breakthroughs (likely fusion or geothermal) Excessive available energy can solve a lot of problems.

In reply to @seanhart
m_j_r@m-j-r
7/23/2023

energy breakthrough + water purification + cross-continental network of pumped storage would probably eradicate famine, arid environments, and climate control for starters.