I don't know what to think when see something like this. Of course, it is impressive that a function can be written in one line. It is clearly a display of intelligence. But I also think that the high level languages were created to make programs easier to understand and explain, otherwise we wouldn't need a high level language, we could have just stayed with assembly languages. But of course, don't make me wrong it is still impressive.

I agree with you. That's not the point of the problem.