Right on, John.

Ever notice that on futuristic science fiction shows an inhabited planet is usually depicted as a single, united culture? That's because that is the intelligent thing to accomplish eventually on any planet if its people are going to grow up enough as a culture to be worthy of journeying to other worlds.

And if there are many such worlds (as I think there may well be) then the ultimate accomplishment would be to unite them all in a friendly association.

But first we have to do that here.