Elon Musk & ChatGPT boss attend Rishi Sunak’s global artificial intelligence summit. It’s as the UK pledges £38 million for AI projects including labs in Africa.

Scientists make the biggest simulation of our cosmos ever - with the mass of 300 billion galaxies.

Chinese researchers say that some children born deaf in the country have finally been able to hear after breakthrough gene therapy.

Also in this episode:

• What your cat is really trying to say
• Giza Great Sphinx likely sculpted by wind long before ancient Egyptian artists gave it form
• A study suggests mobile phone use may affect semen quality
• Why even our bodies hate bad grammar

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