Google will make you wave at your computer to check you are real

Ignoring the fact that some people don't have arms, what's to stop AI generating video with the required motions? However, if Google can normalize having a camera on in order to browse, then they can process your facial expressions when they show you ads. So the end game is an AI reacting to advertisements served by another AI. O brave new world...

username and timestamp with sharpie, or your not human.