Oh! Is Arabic frightfully hard to pick up? Of course it'd be useful for Astronomy. I've been curious about it. I think it'd be so much more insightful to read theories about Chaldean forms without so many filters getting in the way, not to mention the Arabic pure form, which we haven't even gotten into much, but from what I've seen, it seems just so wonderfully elegant. And Hebrew would also be terribly useful too, of course.