AI (Artificial Intelligence) letters and robot hand are placed on computer motherboard in this illustration created on June 23, 2023. REUTERS/Dado Ruvic/Illustration/File Photo Purchase Licensing Rights, opens new tabNEW YORK, Nov 7 (Reuters Breakingviews) - Turn an artificial-intelligence bot into a trader and it acts all too human. Over a two-week span, six frontier models were seeded with $10,000 apiece to trade digital-coin derivatives. Five finished deep in the red, while the last barely sc...