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If the warp is entered in a local frame and exited (which is an issue itself the article didn't mention) in the same local frame there might be some serious need to match velocities to establish a safe trajectory either upon arrival or before departure.
Worst case speed differences certainly tens of kilometers per second in case of Alpha Centauri.
doommaggot · 4139 days ago · link ·
The idea of using lasers to manipulate spacetime has been around for a while. It was suggested as part of a theoretical concept for a time machine, where single particles could be sent back and forth through time periods where the machine is continuously active.
It will be interesting to see the idea tested.