consider this scenario, for argumentative purposes: Their civilization paced itself much the same as ours, with technology expanding more rapidly than understanding of the effects it had on the environment. In a last ditch effort, they created a large fleet of sleeper ships, holding the beings on board in cryogenic stasis for hundreds of thousands of years until the ship reached the intended planet.Fieldy409 said:If they can fly to our planet from their own in another solar system, then they have technology far better than ours. So probably weapons technology too. Id surrender, unless they were out to kill us all. We could never beat them.
the scenario requires only a slightly more advanced civilization than our own (successful cryo-stasis, power to last, and the ability to find habitable planets from other star systems), thereby making military force once again a feasible option.