If you want to model things, maybe use a logic instead. If you want to compute, then things like stack overflow matter very much. See my example in Swift. Is

If you want to model things, maybe use a logic instead. If you want to compute, then things like stack overflow matter very much. See my example in Swift. Is recursion helpful? Of course! Is tail recursion more useful than just the normal control structures like iteration that are already at your disposal? I doubt it, but as I said before, I wouldn't mind having properly implemented tail recursion at my disposal.