It's a question that has puzzled the greatest minds for centuries. A question so profound, so enigmatic, so utterly human. But fear not, dear reader, for we have the answer.
A person, a thing, a concept, or perhaps a whatchamacallit?
Now that we've established that it's WHO, we can finally move on to the more pressing question: WHAT.
Or, as some would say, WHAT IS WHO WHAT WHO?