Artificial intelligence has been used to help translate election candidates into hundreds of different languages — but also to create deepfakes of Bollywood stars and spread false news. The BBC’s Arunoday Mukharji reports.

In the early days of OpenAI’s ChatGPT, a chatbot query required about 10 times the electricity of a typical Google search. And as people do more with generative artificial intelligence, we’re going to burn through even more power. Plus, the ’80s are back — on TikTok. A new dance trend is getting...