PhysicsAre we living in a simulation? This experiment could tell us The idea that we might be living in a simulated reality has worried us for centuries. Now physicists have found some tantalising clues – and devised an experiment that might reveal the truth Features
CommentWhy many inventions, from flying cars to smart robots, fail to launch Some technologies never quite make it. But a new book, The Long History of the Future, shows how certain problems are just bigger and thornier than we thought Culture