 Let us now turn to Wierenga’s account of omnipotence. The basic idea of Wierenga’s account of omnipotence is that an agent is omnipotent if and only if he can do anything that it is possible for him to do, given the past. According to this account, we can analyze what it is for an agent, \(A\), to be omnipotent at \(t\) in a world \(W\) in terms of what it is possible for A to strongly actualize at \(t\) in worlds having the same history as \(W\) up to \(t\).