>I refer to your absolute causality as absolute laws of physics (or laws of absolute causality which, ultimately, is the same thing) and the other causality in the mind of the observer as 'our perceptions of those laws', which again, ultimately, is the same thing as your 'reaction to stimuli'.


Perception isn't a good word.

"Our theories for those laws" might be better.

But the nomenclature of science would say that a "law" is just a "theory" for which there is little doubt.

So "law" isn't a good word either.

"Our scientific knowledge (theories and laws) of the absolute rules" would be best.