Ok I think my issue with this is that its akin to saying: Given the same users, in the same position, with the same hardware, performing the same gestures, we d

Ok I think my issue with this is that its akin to saying: Given the same users, in the same position, with the same hardware, performing the same gestures, we discovered the signals are consistent enough that a NNet can figure out a pattern. However, if the users, the hardware, the wifi router, the positions, the orientations, the conditions, or the gestures used change, you would need to retrain your NNet for that situation. After working on a couple of "ambitious" projects that tried to use wifi or bluetooth signals to mine data, it turns out its not super reliable in real-world situations.