https://www.newscientist.com/article/mg21528835-600-cameras-know-you-by-your-walk/ https://www.newscientist.com/article/mg21528835-600-cameras-... I thought I

https://www.newscientist.com/article/mg21528835-600-cameras-know-you-by-your-walk/ https://www.newscientist.com/article/mg21528835-600-cameras-... I thought I once saw on Reddit that target already uses this in stores. I could be wrong.