@neiltyson @michael_nielsen Do either of you know of a simpler, more accessible explainer of warp bubble propulsion? https://www.youtube.com/watch?v=9M8yht_ofHc …
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@michael_nielsen thanks! Just trying to understand. The idea you can get around light speed by changing distance has always appealed.
@taliesan If I recall correctly, though, he required a negative mass density or something similar, which we don't know how to do