Sony's new AI driver achieves "reliably superhuman" race times in Gran Turismo

AI agents have bested humans at many games, from chess to Go to poker. Now, the machines can claim a new high score on the classic racing video game series Gran Turismo. Sony announced today that its researchers have developed an AI driver named GT Sophy that is "reliably superhuman" -- able to beat top human drivers in Gran Turismo Sport in back-to-back laps. You might think this an easy challenge. After all, isn't racing simply a matter of speed and reaction time and therefore simple for a machine to master?