I would agree with the author that there are other, more useful examples of recursion. He gave a family tree example but for me ‘list all files on your hard dis

I would agree with the author that there are other, more useful examples of recursion. He gave a family tree example but for me ‘list all files on your hard disk’ would be a better example. Tail call recursion is interesting, but that belongs in an FP course, which is usually taught long after the basics of programming.