Heh, I actually an "Atlas Shrugged" experience - I knew a pretty girl and after adding her on facebook I noticed the book was at the top of her favourites. That really did change the way I thought of her.<p>But more generally, I can't make my mind up one way or another about this. I've seen the kind of relationship the last part of the article talks about - very long term, very stable with interests like books, movies, music etc being completely irrelevant - so that makes me think its quite right. At the same time, there's gotta be some baseline - how can a music lover go out with someone that thinks highly of (say) Paris Hilton's music? Or a normal person with a objectivist? ;)