Philosophy
The Metaphysics of Events and the Individuation of Actions
Quick fact
In philosophy, there is no single agreed-upon answer to how many actions occur when you flip a switch. Some say you performed one action (flicking the switch), others say you performed at least three (moving your finger, flicking the switch, and turning on the light).
Why this is interesting
You flip a switch, and the light comes on. Did you perform one action or several? That simple question has puzzled philosophers for centuries.