Dear Miriam,

Recently, the web comic XKCD addressed the question, "What if everyone had only one soul mate, a random person somewhere in the world?"  XKCD's response was not optimistic -- in particular, a graph of "found soul mate" versus "alone forever" is disturbing.  Do you have a different take?  Is there any way around the pessimistic conclusion that it is unlikely that most people will actually find their soul mates?...