The social process of a queue emerging is kind of like blockchains.

Imagine a situation where there's an ambiguous queuing situation… a collection of people, not yet formed into an unambiguous line.

Everyone makes local decisions: which line in front of them appears to be the longest, and that no one will get mad at them for slotting into?

People stand in the line that seems to be the longest, avoiding the perception of cutting.

As the line emerges, it pops into existence quickly; because it's concave and the process is self-accelerating.

As the emerging line gets more resolution, the pull to slot into it in a way that minimizes perceptions of cutting gets stronger.