Gets me wondering… if I get used to the fact that some location is busy, I stop going there. Other people might do the same. Could this create a detectable wavy signal over time? People stop going because it’s busy. It stops being busy. People go because it’s not busy. Repeat. Is this a known phenomenon?

Closest thing would be the “El Farol Bar problem”

https://en.wikipedia.org/wiki/El_Farol_Bar_problem