That is how it is being sold. How it is actually going to work is you are going to be able to visualize what is going on on the other side of the gyproc between you and your neighbour. It has existed for a dozen years in experimental form: https://www.youtube.com/watch?v=fGZzNZnYIHo We should look at investing in companies that start making faraday cages to be embedded into gyproc slabs, wallpaper and self adhesives I guess.