Yes. I think this paper addresses it with the ‘defense of territory’ assumption (‘4. A civilization can retain control over its volume against other civilizations’). I think the idea is that the species quickly establishes a sleeping presence in as many solar systems as possible, then uses its invincible defensive abilities to maintain them.
But in real life, you could well be right. Plausibly there are scenarios in which a superintelligence cant defend a solar system against an arbitrarily large quantity of hostile biomass.
Yes. I think this paper addresses it with the ‘defense of territory’ assumption (‘4. A civilization can retain control over its volume against other civilizations’). I think the idea is that the species quickly establishes a sleeping presence in as many solar systems as possible, then uses its invincible defensive abilities to maintain them.
But in real life, you could well be right. Plausibly there are scenarios in which a superintelligence cant defend a solar system against an arbitrarily large quantity of hostile biomass.