PhysicsWhy John Stewart Bell has been haunting quantum mechanics for decades The “Bell test” was devised in the 1960s to uncover what’s going on in the quantum world, but it continues to be relevant today, says Karmela Padavic-Callaghan Comment
MindMind-reading AI turns paralysed man's brainwaves into instant speech A brain-computer interface has enabled a man with paralysis to have real-time conversations, without the usual delay in speech News