Thermodynamic Bounds and an Optimal Tempo for Goal-Holding Agents

This paper defines an agent as a system that holds a goal under an energy budget, derives physical limits on how fast it can act per second and per joule, and measures intelligence as progress per joule after a run is complete.

In plain words

  1. To count as an agent, a system must aim at a goal, act on the world, and stay within an energy budget.
  2. Physics sets a minimum energy cost for every decision, so no agent can act faster or cheaper than that limit.
  3. Among systems that get the job done correctly, the smarter one is the one that used less energy.