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> Although the future of humanity might be short and unpleasant, this is no reason for despair. All adults know we will die. Similarly, we have long known that
by avmich 3y ago
> Although the future of humanity might be short and unpleasant, this is no reason for despair. All adults know we will die. Similarly, we have long known that all species go extinct. Our character is defined by how we live in light of the terminal diagnosis we were given at birth.
There could be other opinions, of course.
https://en.wikipedia.org/wiki/Space_sunshade https://en.wikipedia.org/wiki/Space_sunshade
> The mass of each disk would be about a gram, adding up to a total of almost 20 million tonnes.[9] Such a group of small sunshades that blocks 2% of the sunlight, deflecting it off into space, would be enough to halt global warming.[10]
https://en.wikipedia.org/wiki/SpaceX_Starship#Cost_and_funding https://en.wikipedia.org/wiki/SpaceX_Starship#Cost_and_fundi...
> Musk has predicted that a Starship orbital launch will eventually cost $1 million.
According to projections, Starship will bring 100 tons to LEO per launch, so if it costs $1 million, then 20 million tons will cost $200 billions. That mass will require about 200,000 launches. Multiply it by 3 to also carry the fuel - the sunshade should probably be deployed not on LEO but e.g. in L1 point of Sun-Earth system. Musk talked about a lot of flight per day - so many that some deliveries served by aviation could be served by Starships - so from many launchpads the total of 1000 launches per day doesn't look impossible.
We still have some technical ideas for how to deal with the problem. We still need more efforts in many areas.
- tempestn 3y agoElon Musk predicts a lot of things. Full self driving, hyperloops, under-city tunnel networks for traffic, multiple Starship launches per day... Anyway, even within the realm of engineered solutions, I expect there are options more practical than enormous space sunshades.
- avmich 3y ago> I expect there are options more practical than enormous space sunshades. Even better. But at least we have this scheme, which was considered some time ago already.
- NettleBurr 3y agoA bit like Mr Burns blocking out the sun… sounds like it would be used for all kinds of geopolitical fights. I can’t imagine that being a good or stable solution