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Star Trek transporters
(lemmy.world)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. A showerthought should offer a unique perspective on an ordinary part of life.
REALLY depends on the episode/writer.
Some episodes are written like that (Will Riker/Thomas Riker)
Some episodes you keep your consciousness throughout the "beaming" process, so you're technically you the whole way through (Broccoli in Realm of Fear)
It's fiction and some writers treated it as a suicide machine, and some wrote it as a movement machine. Even the technical details shifted from episode to episode.