It's going to get scary.

[Credit to the TLDR newsletter]

"Researchers at Carnegie Mellon University were able to create full-body images of subjects using simple Wi-Fi routers. The technology could revolutionize healthcare, security, gaming, imaging, and many other industries. However, it could present many privacy issues as the technology can monitor people's movements through walls without their knowledge or consent. The technique involves analyzing the amplitude and phase of Wi-Fi signals to find interference and then using AI algorithms to produce an image."