We informally explore an emergent interpretation of the action integral in physics, and discuss its connections with the concept of “amount of computation”. Much as entropy quantifies the lack of information one has about the state of a system, action seems to quantify the lack of information about the system’s law.

From given causes, effects are generated by nature in the most efficient way. … No natural action can be. abbreviated [Leonardo]

An institution will grow until it uses up all available resources [Parkinson’s law]