serious Q how hard could it really be to put a swarm of solar reflectors (or better yet, photovoltaic cells) at the earth-sun L1 lagrange point? i understand that it would be a major engineering feat, but it just doesn't seem like it'd be prohibitively difficult ir expensive
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i also want to do an unfolding/deployable fusion reactor i found this paper. they’re pretty optimistic about launch costs, and they need to use radiation pressure for station keeping, and it still comes to trillions. i think cloud seeding in the upper atmosphere is much cheaper
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