I think the Vasudans and Terrans are not big enough to be a threat, as the Ancients were. But we've "adapted" and "survived". If they were created out of subspace, then we can kill them by subspace, and if the live there, they have a Limited supply. Their own beings in another 'dimention' so to speak, and they transfer to our world.
Think of this: You know those 3-4 knossos's. Combine those with the "9 citys of troy" theory. And lastly, what did we do to stop the shivans? Ta-da!
The civilazations before them knew how to blow up a node to keep the shivans out. The Ancients, being gifted in Subspace technology, knew how to reopen those closed off nodes. But failed, they did, to realize the darkness beyond he portals. But i think, if we cant Build our own knossos, we could simply "Move" one to the Sol node and say hi.
Shivans suck, and thats that. We too powerfull? Hell no. 80 Sathys, if you didnt notice.
--And if a Hades can kill a sathy with not much prob, were dumbasses for kiling it. Dam command!
I think Bosch kinda bluffed the Shivans. Shivans fighting a nother force or problem, and us, and he said we got some big ass ships aroudn the corner so dont take more losses and leave to fight the other big bad guy.
[emotional speach]Bosch i beleive in FS- will play a big roll in the fate of humnantiy. Tho he was insane, his hidden agendas, even still he had more hidden oens then we know from his monologs and ideals, those. Those hiddne ones, will save us all.[/emotional speach]