In Choice-based economics, resolution is limited by how finely a decision can be distinguished from another decision. The field does not observe continuous mental states; it observes encoded responses. Resolution is therefore set by the granularity of options, response formats, and behavioral coding. Two preferences are distinguishable only if they lead to different recorded choices under the defined task. Finer resolution comes from richer option sets, more precise response formats, or tighter control of timing; coarser resolution collapses many distinct internal states into the same observable outcome. Choice cannot resolve differences that do not manifest as different decisions.
Core idea:
Choice can only see distinctions that cause different recorded actions.