Natural philosopher definitely sounds like a euphemism for something, but it's vague enough that Seth has no idea what it would be. Plus Seth is doing a pretty good job at pouring alcohol into himself which is making his brain comfortably fuzzy and incapable of really thinking too hard about it.

"Mmm. Mos' of the powers here could probably be classified as magic. Jus'. Very specific, I suppose," he comments. His alcohol level is mostly apparently through his accent getting stronger. He's also a little glad he hasn't yet been asked the same question in return, as he doesn't completely trust a very drunken Daniel to remember that Seth's not all that open about his primary power, and usually defaults to sharing the phasing instead. Especially as Daniel's already mentioned that Seth was the one to help him with his own power.