Microsoft boss says AI can’t be trusted, and Elon Musk’s R248-billion chipmaking bet

• Microsoft CEO Satya Nadella says AI systems require an 'emergency brake' that authorised people can use to deactivate them mid-task.
• Microsoft CEO Satya Nadella believes AI systems cannot be trusted and require an 'emergency brake' that allows authorised people to pause or shut them down.
• Elon Musk is preparing to build a Terrafab factory in Grimes, Texas, with an initial investment of more than $15 billion.