Everyone wants to live forever. Or at the very least, leave something behind that will last. In some ways, that's the most basic driving force behind graffiti: I was here. Paint washes away, but rock carvings, on the other hand, have a considerably longer half life. The device you see above is called The Petroglyphomat: A souped-up CNC mill that its creator, the young German artist Lorenz Potthast, has built on a backpack-like rig that allows the user to carry it anywhere. Potthast has also designed stabilizing elements that let you operate it nearly anywhere, too, whether strapped around a rock or leaning against a wall. Source (Gizmodo): http://gizmodo.com/a-cnc-mill-backpack-drills-permanent-messages-into-soli-1665638337
I guess what they're saying with this is that instead of painting graffitti on rocks in the forest we can now engrave them.
