Wearable tech and data centres: BBC's Shiona McCallum gets hands-on at Europe's biggest tech show

Shiona McCallum is trying on wearable tech at VivaTech in Paris, one of Europe's biggest technology events. The BBC presenter is there to find the latest kit that could soon be in homes and workplaces alike. But beyond the gadgets, a more contentious topic looms: data centres. These facilities are central to modern online lives, but not everyone thinks they are great. McCallum speaks to the head of a major global data centre company about the challenges facing the industry. The conversation underscores the tension between the demand for digital services and the infrastructure that powers them. As the show continues, the question remains whether the promise of new technology can overcome the concerns raised by its backbone.