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

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 up by infecting machines with our irrationalities. Percipient students are always ahead of their time. If Gatlin had not been there, Bolt would still have lost. In all the press and TV commentary, Christian Coleman, who came second, was hardly mentioned.