Mark Zuckerberg's Meta Ray-Ban Display glasses demo failed twice during a live presentation, with cooking assistant and video call features.

Mark Zuckerberg has had to wrestle with a series of tech fails during Meta’s annual Connect showcase this week.

But just for a moment, when the Meta CEO stands on stage in his Meta Ray-Ban Displays and fails repeatedly to do the simplest possible task the AI-loaded glasses were designed to do — pick up a ...