I would define “physical” as the set of rigid rules governing reality that exist beyond our experience and that we cannot choose to change.
I can cause water to freeze to form ice using my agency, but I cannot change the fundamental rules governing water, such as its freezing point. These rules go beyond my agency and, in fact, constrain my agency.
Physics constrains everything else in a way that everything else does not constrain physics, and thus the primacy of physics.
Do you have a definition of the word “physical” as used in physicalism?
I would define “physical” as the set of rigid rules governing reality that exist beyond our experience and that we cannot choose to change.
I can cause water to freeze to form ice using my agency, but I cannot change the fundamental rules governing water, such as its freezing point. These rules go beyond my agency and, in fact, constrain my agency.
Physics constrains everything else in a way that everything else does not constrain physics, and thus the primacy of physics.
If there were a rigid law that the wicked are punished karmically, would that count as physical?