Where would the capital be?

Because the US is the UN's deputy sheriff.

>near the fringes
>Middle east
It's the cradle of civilisation ffs.

Cradle of Shivilization

Macapá, along with a space elevator built there.

Warsaw.

Switzerland.

I'm onto you, you neutral fucks.

That's actually a pretty good idea. I like it.

We're going to build Atlantis. Calling it now.

>If Earth federated into a single nation

Would it even have a federal capital? It would msot likely just split up its government bodies and functions between all the Alpha level global cities. Maybe have its capital on the moon or a space station as a symbol of neutrality and its intention to colonize and rule over space colonies.

Because all examples of federal states or pseudostates (like the EU) have a capital.