That is interesting. Have read his books but never seen videos.

What I was trying to get at is I argue that historically we had no reason to assume magnets to exist until we discovered them. (Sure, today we can explain them in terms of the effects of electrons traveling at relativistic speeds.)

It otherwise seems a safe assumption that we cannot move into a 4th spatial dimension (even if such exists) or do many other outlandish things. I don’t think we can prove them impossible but likely just don’t know how.

But imagine if Newton had been shown an electromagnet and asked to explain it… It would have been witchcraft!

He was familiar with attraction and repulsion of bodies due to static electric charge, which he attributed to "most subtle spirit": https://link.springer.com/chapter/10.1007/978-94-009-7715-0_...