 Molecular nanotechnology, molecular nanotechnology MNT is a technology based on the ability to build structures to complex, atomic specifications by means of mechanosynthesized. This is distinct from nanoscale materials. Based on Richard Feynman's vision of miniature factories using nanomakens to build complex products including additional nanomakens this advanced form of nanotechnology or molecular manufacturing would make use of positionally controlled mechanosynthesized guided by molecular machine systems. MNT would involve combining physical principles demonstrated by biophysics, chemistry, other nanotechnologies, and the molecular machinery of life with the systems engineering principles found in modern macroscale factories.