Ah interesting, I assumed that Roman empire had to have been stable in some ways to last so long. I certainly wouldn't bet on US remaining a single country for

Ah interesting, I assumed that Roman empire had to have been stable in some ways to last so long. I certainly wouldn't bet on US remaining a single country for even another century, although there are also less scary aftermaths scenarios like states increasingly ignoring federal government and running their own internal affairs, but still retaining common defense and free or easy travel and trade. Something close to Poland vs Netherlands in European Union.