Alright, I found another example where chance isn’t in the map, but in the territory, and while I don’t think it applies to our universe, it is a counterexample to the idea that we can always replace chance/randomness by a deterministic system that due to our limited compute, we are subjectively uncertain, which is probably a core rationalist ideal, and that’s a classical gravity theory on top of a quantum world.
While the theory of gravity is still being debated, we do have a lot of evidence for the Heisenberg uncertainty principle being a real feature of our universe, and any theory of gravity that is classical and deterministic is fundamentally inconsistent with quantum mechanics, because if it did, we could use the deterministic field of gravity to measure where the graviton went to infinite precision, breaking uncertainty principles.
Thus, any combination of quantum mechanics with classical gravity requires the gravitational field to have random noise, and cannot be just reducible to uncertainty, and there’s a theory that tries to do this.
I personally don’t particularly think it will work out, but it’s a useful example to show that randomness cannot always be removed.
Alright, I found another example where chance isn’t in the map, but in the territory, and while I don’t think it applies to our universe, it is a counterexample to the idea that we can always replace chance/randomness by a deterministic system that due to our limited compute, we are subjectively uncertain, which is probably a core rationalist ideal, and that’s a classical gravity theory on top of a quantum world.
While the theory of gravity is still being debated, we do have a lot of evidence for the Heisenberg uncertainty principle being a real feature of our universe, and any theory of gravity that is classical and deterministic is fundamentally inconsistent with quantum mechanics, because if it did, we could use the deterministic field of gravity to measure where the graviton went to infinite precision, breaking uncertainty principles.
Thus, any combination of quantum mechanics with classical gravity requires the gravitational field to have random noise, and cannot be just reducible to uncertainty, and there’s a theory that tries to do this.
I personally don’t particularly think it will work out, but it’s a useful example to show that randomness cannot always be removed.
https://www.quantamagazine.org/the-physicist-who-bets-that-gravity-cant-be-quantized-20230710/