Deontology is a good idea from a consequentialist viewpoint. An omniscient being with infinite computing power, capable of accurately calculating from first pri

Deontology is a good idea from a consequentialist viewpoint. An omniscient being with infinite computing power, capable of accurately calculating from first principles the consequences of every action, could operate as a pure consequentialist. We are not such beings, and therefore we necessarily adopt packages of deontological rules that have turned out on balance to lead to good consequences when other people have followed them.