I think there is a real chance this is a smokescreen or diversion, but if it is real, then I'm actually kind of shocked that it could ever work. I guess once i

I think there is a real chance this is a smokescreen or diversion, but if it is real, then I'm actually kind of shocked that it could ever work. I guess once in a while tech surprises me. I mean, that weak a signal + the inverse square law + everything in the area (living things, static electricity, aircraft systems, geomagnetic) I mean... wow. That really works? Damn. It really makes me think that if it's possible to pick up a magnetic signal that weak, what else could be inferred from a signal that weak? Mineral deposits? ship wrecks? Hidden tunnels?