Seems like maybe the solution should perhaps be that you should only take ‘the system’ to be the ‘controllable’ physical variables, or those variables that are relevant for ‘consequential’ behaviour? Hopefully if one can provide good definitions for these, it will provide a foundation for saying what the abstractions should be that let us distinguish between ‘high-level’ and ‘low-level’ behaviour.
Seems like maybe the solution should perhaps be that you should only take ‘the system’ to be the ‘controllable’ physical variables, or those variables that are relevant for ‘consequential’ behaviour? Hopefully if one can provide good definitions for these, it will provide a foundation for saying what the abstractions should be that let us distinguish between ‘high-level’ and ‘low-level’ behaviour.