The point isn't that people would still want rare, unique possessions, it's that the psychology of desire would fundamentally change after centuries of the commodity form being destroyed. It's social disintegration of previously held values, to the point that it would be totally unprecedented.
Like the closest thing we could consider is the internet throwing us into the prehistory of some fundamental changes in interpersonal social psychology. Star Treks way of handling tech would be like still having people use carrier pigeons to communicate friendly greetings like it was still a thing lots of people did despite the changes of the internet.
Aliens having currency systems is only because writers didn't want to actually explore what an alien psychology could actually be like, or if it could be coherent within the framework of their species history and the adoption of replicator technology - they just wanted to have simplistic opponents to throw into the mix. Starr Trek writing has always been very superficial in world building and pursuing depth in that regard.
None of any of this make sense no matter what explanations people try to come up with. There shouldn't be any resource control in a world like Star Trek. With the tech available people should be able to make whatever they want, including their own ships. There should probably be a bunch of gundam style space colonies around and whatever else.
Like the closest thing we could consider is the internet throwing us into the prehistory of some fundamental changes in interpersonal social psychology. Star Treks way of handling tech would be like still having people use carrier pigeons to communicate friendly greetings like it was still a thing lots of people did despite the changes of the internet.
Aliens having currency systems is only because writers didn't want to actually explore what an alien psychology could actually be like, or if it could be coherent within the framework of their species history and the adoption of replicator technology - they just wanted to have simplistic opponents to throw into the mix. Starr Trek writing has always been very superficial in world building and pursuing depth in that regard.
None of any of this make sense no matter what explanations people try to come up with. There shouldn't be any resource control in a world like Star Trek. With the tech available people should be able to make whatever they want, including their own ships. There should probably be a bunch of gundam style space colonies around and whatever else.
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