Not impossible, just incredibly improbable. [ He corrects, because yes he is that person. ]

Presumably the magic of your world gets passed down through each generation so a thousand thousand lifetimes might not mean the life of one magician alone. That's how science works after all.

[ He hums, he's been there long enough that magic doesn't seem surprising to him at all. ]

A lot of people have magic on board. [ He explains. ] I figure it's a lot like a branch of science and has rules too, I just don't know them yet and that is exhilarating.

[ In other words, he studies everything. ]