And the Federation meets their needs because they have effectively unlimited supplies of whatever they need for all but a few applications.
You keep using the word "need", but that word isn't actually relevant to the discussion. The relevant word is "want". And there's no reason to think that even the Federation can provide everything that everyone wants.
mathematical limits perhaps, but no effective limits once energy production technology advances past the point of critical mass.
No. This is pure nonsense. There is no "point of critical mass" for energy production. And you will note that the federation doesn't even have any Dyson spheres.
By which you mean having a medium of allocation? Yes, they do still have that. Either as a straight currency, or simply as a "ration" or "allotment" And those allotments are more than sufficient to cover ordinary living needs for the entire populace.
Again, "needs" isn't relevant here, "want" is. And you're basically saying that, even though the show
says they got rid of money, they must be lying. And on that point I agree: there's no reason for them to get rid of money, unless they've become totalitarian, which supposedly they haven't.
For the challenge. For "honors" rendered from others. For their own increased sense of self-worth.
Ha! Yeah, right. When have you ever seen a redshirt receive honors? And why would being expendable cannon fodder increase your sense of self-worth?
Not everyone would need (or even want) to have their own Enterprise. They would have access to space transportation, however.
Again, need isn't relevant. And it doesn't matter if
everyone wants one. The point is that if more people want one than have one, then it's scarce. And it's going to be scarce.
Look, I don't
need a private jet plane. I can buy a ticket on a commercial airline to get wherever I want to go. But I
want a private jet, because it's a hell of a lot nicer. I just can't afford it. Private jets are scarce, and the availability of commercial tickets doesn't make private jets non-scarce.
But there are plenty of other planets to live on, so it really doesn't matter all that much.
There's plenty of cheap land in North Dakota, so why are real estate prices so high in New York City?