By Everett Interpretation everything in the world is deterministic where all quantum states realize, this leads me to this completely BROKEN set: let S be the set, a self-referential, fractal-like set where S contains itself:

S = { S, { S, { S, { … } } }, a₁, a₂, a₃, … }

Source: x.com/BLUECOW009/status/1833691358571147320