Classical physics, excluding thermodynamics, is invariant under time reversal. I certainly wouldn’t call that causal, but maybe I’m missing something.
Also quantum physics, in no-collapse interpretations. (Except for a few processes like kaon decays, that arguably are time invariant “in spirit” because they are CPT invariant).
Classical physics, excluding thermodynamics, is invariant under time reversal. I certainly wouldn’t call that causal, but maybe I’m missing something.
Also quantum physics, in no-collapse interpretations. (Except for a few processes like kaon decays, that arguably are time invariant “in spirit” because they are CPT invariant).