 An event or state of affairs occurring in the actual world is chancy lucky for an agent if (i) that event or state of affairs is significant for that agent; (ii) the agent lacks direct control over the event or state of affairs; and (iii) that event or state of affairs fails to occur in many nearby possible worlds; the proportion of nearby worlds that is large enough for the event to be chancy lucky is inverse to the significance of the event for the agent. (N. Levy 2011: 36)