Elon Musk quits AI ethics research group

Technology billionaire Elon Musk has quit the board of the research group he co-founded to look into the ethics of artificial intelligence. In a blog post, OpenAI said the decision had been taken to avoid any conflict of interest as Mr Musk's electric car company, Tesla, became "more focused on AI". He has been one of AI's most vocal critics, stressing the potential harms. Mr Musk will continue to donate to and advise the group. In 2014, Mr Musk said AI was humanity's biggest existential threat.