Is it possible to create a single global government, economy and currency?

Answer 1

This is an interesting question. Some people would argue that the US Dollar functions as a global currency in many ways, that the United Nations is an extremely loose confederation and therefore a world government, and that the economy is largely unified. This is a process that will happen gradually as we move forward with crypto currencies functioning as common global currency in a unified world economy that functions under a multi tiered governmental system ranging from the local to the global which includes the state and national (and Union, such as the EU).