[Spaceships] Perpetual Motion?

[Flyndaran]

Originally Posted by acrosome

Ah...
I'd propose that if you can make a fusion reactor, you can likely contain antimatter. The question IMO is the reliability of that containment. But since fusion power is TL9, then at TL10 it's probably pretty reliable.

Not really. Fusion is kind of in the labs now, but we are nowhere near being able to make more than single atoms of antimatter with horrifically bad efficiency let alone know how to contain them for human scales of time. Getting those storages down to levels where the power densities approach gasoline let alone unshielded fission reactors would be massive tech improvements on their own.

Antimatter is nice for how simple it is to explain to us laymen. But I doubt it will ever be used for energy storage in our universe or reasonable hard science fiction setting.