This paper introduces a conjecture that laws of nature may be of different
kinds, in particular that there may, in addition to laws which constrain ou
tcomes (C-laws), be laws which empower systems to direct or select outcomes
(E-laws) and laws which guide systems in such selections (G-laws). The pap
er defends this conjecture by suggesting that it is not excluded by anythin
g we know, is plausible, and is potentially of great explanatory power.