Let me try and think out loud about this hypothetical construct even more...(Math puzzles me, and i was never that good at it)
This reminds me of the problem, (I forget the exact name) where the tortoise runs half as far as the hare....does anyone remember it?
Given:
1) Captain Marvel and Superman operate at the exact same speed.
2) Superman always deposits 2X as many coconuts in the pit as does Marvel take out.
3) Time can be divided into infinitely small units of measure, and Superman and Marvel both can keep up the pace.
Does it not then follow that for any given unit of time (T) there will always be 2 coconuts in and one coconut out? Thus, even if every single coconut can be accounted for by a number, there is always at that same moment a number twice as great going into the pit...thus at any given moment of time, X+X (or X+Y?) Coconuts are going into the pit, while either X or Y are coming out of the pit...leaving the contents of the pit always at some variable of X (or Y) be it 1X, 2X, google-X, or Infinity X.