I think it can exist to some extent...My own experience: At a new school, I saw this guy who was friends with some friends of mine, but we'd never spoken. The minute I saw him, I knew that we were going to be close. There was just some kind of attraction between us (not looks, I don't think i even thought about that until later), and he's told me that he felt something similar when he first met me, and I know it sounds weird, and it was weird at the time, feeling that someone who I'd never spoken to was going to become one of the most important people in my life, but it happened. So we eventually became friends, then best friends, and now, we've been together for ages. So yeah, to some extent (maybe its rare), but love at first sight can exist, and can exist beyond lust and looks.