One of the things that has made me wonder about the Alcubierre drive, is that you'd pretty much have to have your route laid out knowing exactly where every object is along your path. You couldn't steer. And hitting something at that speed would be bad. So you could probably travel quickly in the vast emptiness between galaxies, but there would still need to be a lot of mapping going on. For safe efficient space travel, we need a 3D live map of the universe to navigate.
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