Pragmatically, it can have meaning.
0 can represent a negative of unclear expectations.
If you look at your bank balance and it’s 0, but you expected there to be $1000 in it, you’re not -$1000 but $0.
However, if you do double-entry, you’ll see the -$1000 or rather a $1000 deficit in your budget that shows up as $0 in your balance.
This can be compared to a $0 where you had no expectations or a $0 where you had $500 of expectations.
So in that case, if your lifestyle is such that you have “1/2 of 0″, it is because you have simplified your needs so that that $0 is only 1/2 as bad as it was when you needed more.