Who are all these friends at the party? I don't recognise many of them. One woman is matchmaking. I thought the two men opposite me were a couple but no she has only just introduced them. "You are a genius," we tell her. "Yes, for example, have you ever thought about X (a young woman I can't place) and Olly together?" Well yes, I think. Except Olly has been dead for about 25 years.