Cambridge researchers find chatbot uses repetition and overuse of “however”. TikTok’s plans to crackdown on misinformation around elections. How human-driven climate change has slightly slowed the Earth's rotation. Elon Musk’s free X Premium offer. Also in this episode:

• New image shows magnetic fields at edge of Milky Way’s central black hole
• ‘Game-changer’ test spots signs of motor neurone disease before symptoms
• Can outdoor swimming reduce symptoms of depression?
• Scientists train dogs to sniff out stress in human breath

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