Have you eaten khinkali? Oh, you must try it.” It was one of those rare moments when a note of emotion had crept into Giga’s voice. Nothing could perturb our placid guide-and-driver in Georgia, it ...

Elon Musk’s xAI artificial intelligence firm has acquired Musk’s X, the social media outfit formerly known as Twitter for $33 billion, marking the latest twist in the billionaire’s rapid consolidation ...