Chinese fintech giant Alipay has for some years now had the “Smile to Pay” system: Alipay users can pay for something by just smiling into the camera in an Alipay “Smile to Pay” POS terminal. IIRC KFC was the first place to have it.

I thought you were kidding but who the hell thought this ridiculous concept was a good idea? Putting aside the security implications, did no one see how absurd it is?