I thought of the example of Torchwood - creating a pretend world where everyone is bisexual and thus allowing the exploration of all sorts of ideas beyond what is normally possible when portraying minority sexualities. However I think it is important that that is fiction. I suspect the pretence of equality where research is telling us there is no equality is best confined to fiction. That gives the best of both worlds - sticking with reality and the challenges it presents in the real world, whilst allowing fictional worlds to imagine the unrealistic and maybe find new solutions in the process.