How do you know if the glass is half empty or half full?

Answer 1

Well, the answer is pretty simple. It depends on the state of the glass the last time the contents were acted upon.

If the last action involved filling the glass so that the contents filled up half of the glass, then the glass is half-full.

If the last action involved emptying the glass so that the glass had only half of its content left, then the glass is half-empty.

If you did not observe the last action performed on the contents of the glass, then you should either fill or empty the glass a miniscule amount so that you can then definitively state that the glass is half empty or full.

You should then break the glass so that no one can challenge your conclusions.

This procedure is known as the Other Scientific Method.

Answer 2

I figure you just have a glass that's twice as big as it needs to be.