Most friendship groups will have someone who starts a new relationship, and you just don't see them for four months. And that's always kind of sad, almost like an inverted break up. I guess the ideal situation is that whoever the new partner is can be subsumed into the friendship group.

The most watched programme on the BBC after the news is probably 'Doctor Who.' What has happened is that science fiction has been subsumed into modern literature. There are grandparents out there who speak Klingon who are quite capable of holding down a job. No one would think twice now about a parallel universe.