I watched this and I have somehow the feeling that it solves the broblem that does not even exists ? documenting code - do not use video! Do you even document

I watched this and I have somehow the feeling that it solves the broblem that does not even exists ? documenting code - do not use video! Do you even document it while writing, that does not make sense because the video will be invalid and old in 2 hours teaching -nope, just give us the working code