4 ms·

My read is that the computational dynamics involved in a microstate cause it to map into a stable macrostate over time. Proving that the microstates map to the

My read is that the computational dynamics involved in a microstate cause it to map into a stable macrostate over time. Proving that the microstates map to the macrostates is the real trick. This implies the microscopic level is computing the state of information on the macroscopic level. It seems like 'strong lumpability' means the microstate mappings are equivalent to a macrostate, so we can safely infer the dynamics of a system based on the macrostate without having to compute from the microstate.

derbOac 3y ago
From the paper: "causally closed levels can be efficiently controlled from just macroscopic interventions, without needing to intervene on microscopic conditions." I think that's stating things causally rather than predictively but two sides of the same coin. I agree though. One issue the paper doesn't seem to underscore or delineate are the roles of measurement or intervention costs (in an information or utility theoretic sense) at different levels of emergence and how those affect decisions to work at one level or another.