At some point in the 1980s we gave up on the future. Before then, we imagined wonderful days to come, free from disease, work and want, in television series like Star Trek or events such as the 1939 Futurama World Fair. When we look ahead now, we tell dystopian stories of environmental collapse, zombie plagues and the end of civilisation. If it is true that we have to imagine the future before we build it, then this is deeply worrying. There are of course good reasons for this bleak outlook. Serious environmental and societal problems are building, most notably climate change, inequality and population demographics. These will be accompanied by technological advances, including artificial intelligence and biotechnology, which will amplify the rate of change and make the future increasingly unstable and unpredictable. And we are changing too.