I’d like to draw a line under this ongoing debate so we all have more time to do important things like drawing pictures. I conclude as follows…
The glass is half full if it’s being filled, and half empty if it’s being emptied.
I drew some pictures to illustrate this point:
P.S. If you can think of some situation of perfect stasis, I suggest you shove it in the box with Schrodinger’s cat. If still in doubt, considering a longer timeline (say 10,000 years) resolves most unanswered questions by rendering them irrelevant.