A Philosopher, A Physicist, A Mathematician And A Chemist Are Drinking At A Bar...

The physicist calls the waitress over and politely says "I'm halfway through my beer, could you bring the table another round please?" She is happy to oblige. The philosopher is quick to ask the table "is the beer is half empty or half full?" They think about it... The chemist is first to answer "are we even sure it's beer?" The physicist answers next "it is in both states until it is measured or observed... We're observing it now but we have no way of measuring this... Here me out, let's assume that the beer is a sphere in a vacuum... " the mathematician interrupts her and says "sorry guys but this problem is trivial.. Empty = 0, half of zero is zero, there is a non zero amount of beer in the glass, therefore the glass is half full."