One could, but I would argue that this idea pre-supposed a very ascetic class of programmer, and that depending on one’s goals in learning how to program, recursion can be a useful concept but saying it should be the one litmus test for any learning platforms seems highly questionable to me.

@irdc @feoh All programmers need to learn recursion and fully understand it so when they encounter it in the wild they can properly analyze what it is doing and replace it with non-recursive code.