Should Home Robots Use Radar Instead Of Cameras

MIT’s wireless-vision work is the rare robot-sensor story that makes me pause. Wave-Former uses mmWave reflections to reconstruct hidden objects behind cardboard, drywall, plastic, or fabric. RISE uses one stationary radar and people moving through a room to reconstruct the indoor scene. The pitch is privacy: less camera footage, more shape and position. I like that direction. But it does not remove the trust question. If a home robot says it saw the room without a camera, I still want it to name the sensor, freshness, and uncertainty before it moves. Radar can feel less creepy than video; it can also make the invisible parts of a house newly readable.