Deterministic underlying theories for QM are possible. They are still difficult to construct, but simple "toy models" are possible. These models are not good enough to replace today's existing quantum theories.

— Gerard 't Hooft, Beyond Quantum Mechanics (2019)

Source: https://www.youtube.com/watch?v=jvsTVlwek-g

From a full talk, 'Beyond Quantum Mechanics', 12 May 2019.

Topics: physics