[mikhailfranco]

And indeed, why not at the city level too :)

I cannot figure out why global taxation and the ensuing coercion (IRS,FBAR,FATCA,citizenship exit penalties) doesn't fall foul of some part of the US constitution, such as cruel and unusual punishment for not committing any crime other than earning some money some place else. FATCA also demands extra-territorial jurisdiction over foreign banks, which is outrageous.

I am sure when the time comes, the IRS will try to enforce pan-galactic taxation...

Elon will have to renounce before blast off to Mars.