As DeepSeek shocked the world, we speak to an AI expert who worked at a Chinese AI firm. We hear about a new battery exchange system for EVs in Addis Ababa. And imagine a world without potholes - we've got a scientist on who is working on self-healing roads.

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Presenter: Chris Vallance
Producer: Imran Rahman-Jones
Editor: Monica Soriano

(Photo: The logo of the Alibaba AI model Qwen, a blue triangle with Chinese characters beneath. Credit: Getty Images.)