The photograph example has local hidden variables. The quantum version doesn’t, but nothing has ruled out non-local hidden variables. Locality is a nice property we want the universe to have, but the universe doesn’t have to obey our desires.

My field (cryptography) is unlikely to run into this, despite having some advanced math. There’s just not that much use for anything in 2D, and abstract algebra doesn’t bother with things as mundane as “numbers”.