Yep! This is one reason why I argue we should do lowish power density fusion, in space, using the vacuum of space. There’s a nice set of existence proofs, and the gentle magnetic fields do a much better job of confining energyhttps://twitter.com/michael_nielsen/status/1223291031338115072 …
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Replying to @DanielleFong
What is the advantage of that over just big solar fields in space, and does it make the transport problem any less onerous than space based solar power?
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Replying to @ID_AA_Carmack
Not saying that it can’t be solved but direct ion engines have a major thrust problem, also once you’re far enough from the sun the power density diminishes a lot. Additionally, a big magnetic field around your spaceship is probably the way to go vs solar flares and cosmic rays.
5:46 PM - 31 Jan 2020
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