The Great Question

So many people reckon they have come up with the greatest question mankind has ever faced. For instance:
Are guests on "The Jerry Springer" show really KGB agents trying to corrupt America's youth? or Why cant I think of good ideas every week, why do I end up writing stuff like this?
Anyway I still reckon I have got the greatest question mankind has ever heard...or in this case seen considering I think this picture gives it a well illustrated approach.
Now tell me...who can answer this?