PhysicsTime travel sci-fi novel is a rip-roaringly good thought experiment An ordinary-looking valley has a secret – each of its neighbours is 20 years removed in time. Scott Alexander Howard's debut is heartfelt and deeply enjoyable, says Emily H. WilsonCulture
CommentWould you resurrect a dead loved one with AI, asks a new documentary The extraordinary film Eternal You probes the power of "grief technologies" – boosted by AI – to generate credible simulations of the dead, says Simon IngsCulture