The problem of "individuation" concerns the question of whether two actions are identical or of how actions should be counted. For example, on April 14, 1865, John Wilkes Booth both pulled the trigger of his gun, fired a shot and killed Abraham Lincoln. On a "fine-grained" theory of "individuation", the pulling, the firing and the killing are three distinct actions. In its most extreme form, there is one distinct action for every action type. So, for example, since "singing" and "singing loudly" are two different action types, someone who sings loudly performs at least these two distinct actions. This kind of view has the unintuitive consequence that even the most simple exercises of agency result in a vast number of actions. Theories of "coarse-grained" individuation of actions, on the other hand, hold that events that constitute each other or cause each other are to be counted as one action. On this view, the action of pulling the trigger is identical to the action of firing the gun and to the action of killing Lincoln. So in doing all of these things, Booth performed only one action. One intuition in favor of this view is that we often do one thing by doing another thing: we shoot the gun by pulling the trigger or we turn on the light by flipping the switch. One argument against this view is that the different events may happen at different times. For example, Lincoln died of his injuries the following day, so a significant time after the shooting. This raises the question of how to explain that two events happening at different times are identical.