Actually, if you were really worried about epidemics, it would be better to fragment the world further. Make travel much harder and rarer. From an existential p

Actually, if you were really worried about epidemics, it would be better to fragment the world further. Make travel much harder and rarer. From an existential point of view, mass air travel is a really bad idea. If a pandemic ever breaks out, it could be far too difficult to contain it in one continent, thus posing a threat to all technological civilization, and humanity itself. If continents were separated, America might have time to develop a vaccine before a disease incubated in Europe could reach it. Back when I was in middle school I was a fan of world government. The big problem is that exit is a much better way to enforce accountability and make governments serve the people than any form of voice is. "Voice" is an illusion since bureaucracies always maintain the real power and are resistant to change. Furthermore, world government is a massive single point of failure.