Leaping right to the existential questions now, are we?

[Far from sounding annoyed, he's actually amused. And a tad impressed. Most people don't reach that point right away.]

Well, I feel pain. I'm capable of losing consciousness. I've found certain powerful magics that can, at the very least, interrupt my existence. But otherwise? [He shrugs.] I don't know. I've never felt the inclination to test it.

[... Which is also a lie, but not very important at the moment.]