Is language-based artificial intelligence as capable as it seems? We visit a theatre production that places the GPT-3 algorithm at its heart. Plus, why attempts at using AI to help diagnose and treat Covid-19 don’t yet appear to have yielded significant results. And how sensors and AI might help provide better care for vulnerable people in their own homes. Presented by Rory Cellan-Jones, with BBC senior tech reporter Zoe Kleinman. Produced by Jat Gill.