Such scenarios are mostly hypothetical, and would mostly include world-ending situations such as planetary impactors. Do note that I'm not advocating for ETH-n

Such scenarios are mostly hypothetical, and would mostly include world-ending situations such as planetary impactors. Do note that I'm not advocating for ETH-nodes in space, I'm just putting up reasons for sending [stuff] into space. If you had a very lucrative webshop, you could decide to do HA by sending some of your servers to space. It doesn't logistically or practically make any sense, but the reasons for doing so are not wrong per se.