I's actually a simple math problem.
Suppose there are two opposite walls in a room, one named "Male" and the other named "Female".
Start with your back against the "Male" wall and walk half way to the "Female" wall. From that position, walk half way to the "Female" wall again. And again. And again ... It can be proven that you can keep this up forever and never get to the "Female" wall, but get close enough for all practical purposes.
