We've banned this account for repeatedly breaking the site guidelines badly. Not sure what's going on here, but you've been posting like this a lot, and that's not ok.

If you don't want to be banned, you're welcome to email hn@ycombinator.com and give us reason to believe that you'll follow the rules in the future. They're here: https://news.ycombinator.com/newsguidelines.html.

If I could take my watch off while I sleep and still get good heart rate / sleep tracking from devices positioned around my bed that would be great. My watch can cause skin irritation and I find it valuable but not having it on while I sleep would probably be healthier. Also as I get older if I could put a wifi device in each room that did active tracking and not have to carry a device I need to keep charged that would be great for life alert style thing, and general health monitoring.

You're making a lot of loud baseless claims really quick, aren't you?

Radar technology isn't some kind of forbidden magic. Can you do radar sensing with 2.4GHz? Yes, absolutely. Now, can you do it well, with an off-the-shelf Wi-Fi chipset, and get down to heartbeat monitoring? Only if the chipset was designed for it. Very few existing chipsets are. Still a new experimental thing.

For practical applications today, I would look instead at things like dedicated mmWave 24GHz radar chips instead - they're getting cheap now. For the future? If chip vendors that ship the usual 2.4GHz/5GHz MIMO router chipsets start putting the relevant features in, the idea would be worth visiting.

If I had the ability to track users heart rates in response to advertisements, media, political content, etc that would be quite valuable for producing content that better captured users and made them feel what I wanted them to feel. Heart rate says a lot about what we're feeling and our attention, especially if you have it all the time and can match it to what we're looking at.