The idea for Starship Titanic first surfaced in the way that a lot of ideas originate, as a mere couple of sentences out of nowhere. Years ago it was just a little digression in Life, the Universe and Everything. I said that the Starship Titanic had, shortly into its maiden voyage, undergone Spontaneous Massive Existence Failure. It's just one of those bits that you put in while you are waiting for the plot to develop. You think, 'Well, I'll develop another quick plot while I'm about it.' So it sat there as a couple of sentences in L, U & E and after a while I thought, 'Well, I think there is a little bit more to this idea,' and tossed it around for a while. At one point I even considered developing it as a novel in itself and then thought, no, it sounded too much like a good idea, and I'm always wary of those.