Earlier quoted context omitted.
I love Feynman. He was an incredible teacher but this video has always annoyed me a little. The interviewer asked a pretty clear question (explain why magnets repel or attract depending on how you align them) but Feynman goes on a bit of a rant about how the guy won't understand if he explains things as he (Feynman) understands it and that he (Feynman) doesn't know how to explain it to him (interview) in ways he woul…
Feynman tries to explain the absurdity of trying to ask questions which if divided down to their most simplistic forms can't give binary 'yes' or 'no' answers. The issue with the 'why' questions is at the bottom most place in the the 'why' stack you need to have an axiom/postulation or at least a plain assumption, without which you can't explain the subsequent 'why' or 'how' questions. Now this a classic trick in try…
A perfectly acceptable answer from Feynman would have been to just explain magnetic force in a basic (high school) level.
He could have made his argument about any of the questions the interviewer asked as pretty much every scientific question will get down to fundamental physics which will be beyond most people.