Everytime one of these threads shows up someone mentions gait recognition, which sounds incredibly dystopian. Do I have to be constantly conscious of how I walk now to maintain some form of privacy?
"The pentagon has a laser that identifies people by their heartbeat"
https://www.engadget.com/2019-06-27-the-pentagon-has-a-laser...
[1]: https://en.wikipedia.org/wiki/Ultra-high-molecular-weight_po...