One of my professors used an example like this to encourage you to pause if you ever find yourself doing something like "maybe if I just flip this < to > the tests will pass". The space of incorrect programs (even ones that pass your tests) is enormous compared to the space of correct programs.

If you like thinking about this and haven't seen this before, check out the busy beaver problem[1].

[1]: https://en.wikipedia.org/wiki/Busy_beaver

flipping > to >= works quite often though!