[stevage]

>It can see WiFi through walls

I don't understand what this is trying to say. Everyone who has ever used wi-fi knows that it works through walls. You try to connect to a wi-fi in an apartment, and there are dozens of other networks showing up.

So this headline just seems...meaningless?

[stevenhuang]

It's RF vision, it let's you visualize RF sources as a coloured blob overlay in real time.

[Barbing]

We know the definitions of "see" and when we take it to be in the "visualize" sense, it tracks for me.

[roncesvalles]

I'm guessing if you can "see" Wifi through a wall, you can also infer some things about what's behind the wall, because the signal will have certain obstruction patterns. It becomes an xray.