Some zones are unreachable deep below mines. However, specialists have begun to work on developing drones that can fly, drive, and climb, as well as employ laser technology to scan zones and construct a 3D map of them. With the advancement of airborne robots technology, we will be able to extend human reach into areas where man-made infrastructure does not exist. By 2050, we will be able to implant nanobots into people’s brains to retrieve memories of loved ones. When combined with a DNA sample from the deceased, it will be able to build a convincing virtual replica of someone who has died away.