Elon Musk and Jack Ma disagree about AI's threat

Alibaba's Jack Ma and Tesla's Elon Musk took opposing views of the risks and potential rewards of artificial intelligence at an event in Shanghai. The Chinese entrepreneur said he was "quite optimistic" about AI and thought it was nothing for "street smart" people like them to be scared of. "I don't know man, that's like famous last words," responded Tesla's chief. Mr Musk added that technology was evolving faster than our ability to understand it. The two did, however, agree on one topic: that one of the biggest problems the world is facing is population collapse.