This new kind of vision is made possible thanks to modifications to small, cheap microchips which are able to fit on an ordinary human’s fingertip. The microchips will radiate terahertz waves (“T-rays”) which are capable of penetrating solid materials without having the damaging effects of X-rays, and a hand-held scanner with T-ray capability is said to be able to locate a razor blade hidden inside plastic. How about using it to measure the fat content of chicken meat? When that day comes, we might as well all walk around naked as there’s no point in wearing clothes any more.