Do we live in a simulation? Astronomer Royal for Scotland Catherine Heymans tells Jacklin Kwan the compelling reason why our reality could be synthetic CHILDREN will deploy all sorts of tactics to avoid going to bed. Catherine Heymans’s youngest had a canny one: to distract his mum, an astronomer at the University of Edinburgh, UK, he asked her meaty questions about science. One night a few years ago, he posed one of the oldest chestnuts of all: could the reality we live in be a simulation? For most parents, this would have been the cue to switch off the bedroom light. For Heymans, who is also Astronomer Royal for Scotland, the question was harder to ignore. …