Was second-placed sprinter Christian Coleman too fast to see? | Brief letters

Artificial unintelligence | Athletics | Donald Trump goes down to The Wire | John Major's civic conservatism | Pieceword | Ejaculation Reading Stephen Buranyi's article (Rise of the racist robots, G2, 8 August) reminded me of a discussion 30 years ago with a sixth-form class (following a viewing of Kubrick's 2001: A Space Odyssey) on whether daily contact with computers would make us more machine-like. "No," said one girl: "Since humans contaminate everything they come in contact with, we'll end...