A new AI algorithm can track your movements through a wall

For decades, prestigious scientists have been searching for a way to see through walls. And, in the past few years, they've succeeded -- they created technology that uses WiFi to sense people through walls. Only, the signal it returns is really scant. Now, researchers at MIT have developed a new machine learning algorithm that not only detects people's movements, it also models what they are actually doing. Fortunately for people who value the modest privacy walls provide, the new technology just recreates a bare-bones stick figure that matches the person's pose and movements.