Steve Caplin's love for Perplexity deepens. OpenAI's rival to Google is almost ready but ChatGPT apparently makes up URLs. BA's hilarious new safety video has been watched on YouTube half a milion times. Fruit – but not veg – reduces age-related depression. There's a new supermarket delivery robot, while a Japanese supermarket uses AI to standardise smiles and Simon warns about Sainsbury's illusory online offers. There are a couple of devices to help stop snoring, but one uses AI and the other electrocutes your tongue! And the Royal Mail app can now detect counterfeit stamps.

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