[ pours one out for people who don't know the internet... ]

If dumb luck works, then it works. It's called... trial and error?

[ Which is slow, tedious, frustrating, honestly dangerous, etc etc, so it's not like he wouldn't jump at the chance for having things explained either. Out of everybody in the entire coven, the best suited for questions would be... ]

Genette... maybe... could explain it. She's from Earth, so she probably believes in science and technology more than magic.