I must know the absolute luckiest set of people around me, then, because every single one of my friends that's in a relationship had it "just happen".
Not around me there aren't...I think the point Crow was making is that if you're interested in someone go for it. If it doesn't work, there will almost certainly always be others. Sure you're never going to meet a billion people, it was an exaggeration to make the point that there are plenty of single people out there.