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Wormholes and causality

No.7625382 ViewReplyReportDelete
Whenever wormholes come up in a thread there always seems to be people acting like they would be totally valid means of FTL travel with no causality violation concerns but I don't see how its possible that you wouldn't be observed to have arrived before you left from some frames of reference if you used one.

Doesn't that constitue a causality violation? Am I missing something or do people who act like they wouldn't violate causality just not understand relativity?