In the invisible expanded mode, they can sense and map body motion with great fidelity and without a body feeling their presence. If you and your distant lover is surrounded by utility fog and connected to the super internet, things can really get interesting. The Fog in your room can be programed to congeal into the body of your distant lover, eyes blinking, every subtle motion reproduced. You are simulated in the same way at the distant point. Your lover is simulate so well, the feel of individual hairs is identical to life.
Color is identical using the same light interference pattern technique that colors a butterfly wing.
Speech motion and sound are instantaneous, thanks to fiber optics and the speed of light. The smell of your lover is reproduced in microscopic chemistry factories embedded in the Utility Fog. In fact, all body fluids are reproduced with great fidelity. It's time for sex between lovers separated by perhaps thousands of miles. Sex with a live telepresence and with all the spontaneity and sensations of live sex.