Tesla's AI Day is tonight. It may wow you -- or end with a gaffe

Tesla (TSLA) will hold its second annual AI Day in Palo Alto, California, Friday evening. The six-hour event will include updates on Tesla (TSLA)'s work in artificial intelligence, "Full Self-Driving," its supercomputer "Dojo" and maybe a humanoid robot, according to invitations posted online by Tesla (TSLA) supporters. The event is expected to be live-streamed. Dojo is a supercomputer being designed to train AI systems to complete complex tasks like Tesla's driver-assistance systems Autopilot and "Full Self-Driving," which sometimes perform some driving tasks like steering and keeping up with traffic. Tesla's previous AI Day included detailed technical explanations of the company's work in a bid to attract leading engineers.