Have you ever been at the construction-site of a high-rise and experienced the sound-cocktail of machines, colliding materials, the blasting boom-boxes, shouting workers? And have you then returned to the same place years later; when the building is finished? Where are the echoes of these past sounds while you wait at the reception? What do you experience during an awkward elevator-ride? People with blank stares, no talking, maybe some music... but nothing, absolutely nothing audible from the past. Now have a closer look. See the scratches at the wall, maybe a sneaky footprint in the concrete behind an emergency-exit, a chipped wooden frame? Static traces from the past. Petrified life. And now imagine a new construction-technique being introduced. Let some walls be written by massive 3D-printers, 'writing' threads of concrete layer by layer in quick scanning motion with preprogrammed perfection. All neat, all nice. And then modify the 3D-printer. You pick up the sound of the
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