"WeChat is sometimes described as being a social network, but it's really so much more... It is perhaps best thought of as being a kind of secondary operating system that sits on top of iOS or Android.

It is also viewed as being a key instrument in China's internal surveillance apparatus - requiring local users who have been accused of spreading malicious rumours to register a facial scan and voice print."

People watch movies and wonder what an AI future will look like. We're already in it - it looks like this.