The technology to convert wifi signals into the placement and identity of people is getting much better. Not by using their devices, just the waves bouncing of their bodies. (There’s nothing new to the pipeline as far as I can tell, we’re just starting to get into the accuracy ranges that make it easy/useful.)
Wired only network with Faraday caging everywhere. I think they even make signal blocking paint!
You know, I think I just came up with my first $1,000,000 product; drywall with embedded copper mesh.
Sounds pricey.
Well he did say it was a million dollar product…