Why has the idea of a “utopia” been so compelling over the centuries? What major cultural shifts have been reflected by the sci-fi genre? And why have generations of sci-fi authors been so obsessed with politics, ecology and biology? Professor Roger Luckhurst answers listener questions on how sci-fi has imagined the future by reflecting the concerns of the past – from the pioneering work of authors including Mary Shelley and HG Wells right up to modern day.