Why quantum chips need extreme cold

From the BBC World Service: There's mounting pressure on Grok — the AI chatbot that's part of Elon Musk's social media platform, X — over the generation of explicit images. The U.K. is rushing through a new law making it illegal to create nonconsensual intimate images; meanwhile, Indonesia and Malaysia have already blocked access to Grok. Then, the race is heating up to build the most powerful quantum computers. We visit one of the biggest players, Google's quantum lab in California.