I've never understood reprap's cult-like fascination with self-reproducing 3D printers. This is such an absurdly impossible goal that it's more of a category er

I've never understood reprap's cult-like fascination with self-reproducing 3D printers. This is such an absurdly impossible goal that it's more of a category error than a current technological limitation: 3D printers are not organisms with ancestors, they are manufacturing tools. The things that CNC mills, injection molds, and 3D printers are made of are very different than the things they make.