Anarchy can only exist until someone does something bad enough that other people ban together to stop them. This tends to happen quite quickly under anarchy, thus forming governments (even if they are just local militia enforcing their will as despots).
Governments can only not exist when the population density is so low that people only interact when they want to and can cease interaction when they so desire. This is extremely low population density, and given the increased range technology gives us, there are very few places that have this low of a density, and even then it only lasts as long as the density doesn't increase due to some migration event.
Governments can only not exist when the population density is so low that people only interact when they want to and can cease interaction when they so desire. This is extremely low population density, and given the increased range technology gives us, there are very few places that have this low of a density, and even then it only lasts as long as the density doesn't increase due to some migration event.