Parents of children not vaccinated against polio are being contacted in parts of London after the virus was detected in the city’s sewer system. We spoke to our Health Editor for the latest. Twitter trials ‘notes’ to increase its character limit and an edit button is finally here. Elon Musk says Tesla’s US and German plants have become “gigantic money furnaces” because of Covid-19 supply problems in China. Apple boss Tim Cook’s been talking to China Daily USA about augmented reality; is Apple’s rumoured augmented reality headset actually real? The exact co-ordinates of Ernest Shackelton’s Endurance wreckage under the Antarctic ice have been revealed. Real-time translations is coming to Zoom. Plus, Instagram will now ID you if claim you’re over 18, Meta’s Oversight Board says it’s dealt with more than a million appeals in its first year and Alexa might soon be able to mimic people’s voices… alive or dead. See acast.com/privacy for privacy and opt-out information.