Agreed it seems unlikely. In the meantime, I really can't worry too much about any specific scenario and outcome. Any major systemic failure leads to uncertainty and what comes next is anyone's guess. Instability is hard to predict, best thing to do is just keep a level head and take it one step at a time.

>After a collapse of civilization

Collapse is a process, not an event. Collapse is happening all around us, yet we're not all turning into gangs of marauders. When catastrophes happen in poor countries, they don't turn into roving gangs of marauders either. People tend to work together, actually.

>likely only highly organized and well armed groups will survive

[extremely USAmerican voice]