What if we put a glass of water with water in it at exactly 0.5 ratio to the size of the glass. If we also put a person in the box and give that person a drug with a random 50% chance of turning the person into either a pessimist or an optimist, and close the box before we know the effect of the drug on the person, the I suppose the glass is both half-full and half-empty.
Yet another example of why people who don’t really study physics probably shouldn’t be allowed to talk about it.

