Of course, if the Romulans left because they didn't like the Surakian ban on being violent towards thy neighbor, then one would assume they continued being very violent indeed after the departure. Which might keep them busy enough that they would not spare a thought to the conquest of alien planets.
And I must still insist that the idea of something like nuclear power still being expensive in the 2040s is more or less untenable. There would have to be spinoff from something as momentous as the DY-100. Electricity is absurdly expensive as a thing, too - you need installations the size of cities to power your tabletop fan. Yet electricity is also dirt cheap, because it's worth being made cheap. We could well postulate that antimatter technology becomes cheap through some similar mechanism, by some operators having an initial interest in developing it, and others finding commercial value in it. Perhaps the magic of creating it through "flipping" (rather than expending Einsteinian energies) is discovered early on?
Timo Saloniemi
And I must still insist that the idea of something like nuclear power still being expensive in the 2040s is more or less untenable. There would have to be spinoff from something as momentous as the DY-100. Electricity is absurdly expensive as a thing, too - you need installations the size of cities to power your tabletop fan. Yet electricity is also dirt cheap, because it's worth being made cheap. We could well postulate that antimatter technology becomes cheap through some similar mechanism, by some operators having an initial interest in developing it, and others finding commercial value in it. Perhaps the magic of creating it through "flipping" (rather than expending Einsteinian energies) is discovered early on?
Timo Saloniemi