In The Original Series in the 60s, people had no idea what the future would look like or what technology would look like. In one of the early episodes, they had a paper print out machine on the bridge that looked like a fax machine, which was considered futuristic in the 1960s.
Like the example of the Enterprise fax machine, what technology or system do you think are we displaying in the current Star Trek shows that will show how dated we will become in the future?
It's mentioned a few times, replicators can work "in reverse". They'll put in trash, dirty dishes, old clothes, whatever is no longer needed back in for the replicator to break back down into energy for later use
... or accidents ... imagine placing your finger or hand on a replicator at the wrong possible moment or it just malfunctions and you happen to be standing nearby ... your finger or hand either get dematerialized or augmented with a tuna sandwich and a glass of orange juice.
What do they do with the occasional dead bodies? Do they ever bring that up? I'd think that if replicators can work "in reverse", then they should also have their teleporters able to work similarly "in reverse", but not actually teleport the bodies anywhere, but rather absorb the raw atoms, molecules, and energy..
Bodies are put in a photon torpedo casing and shot out during a ceremony in a "burial at sea" kind of way or occasionally brought back to earth if you're not lost in the Delta quadrant lol