TechnologyHow not to misread science fiction Focusing on the futuristic tech that appears in sci-fi without paying attention to the actual point of the story is a big mistake, says Annalee NewitzComment
PhysicsWhy quantum mechanics says the past isn’t real The famous double-slit experiment brings into question the very nature of matter. Its cousin, the quantum eraser experiment, makes us question the very existence of time – and how much we can manipulate it Comment