Learning from primate motor behaviour Abstract Movement analysis in various settings suggest that the (human) nervous system is based on a highly predictable underling spinal/skeletomuscular structure. Based on both neuroprosthetic and biomechanical measurements, a number of arguments will be put forward suggesting that our brain really has an easy job controlling our limbs. It evolves in a not-very-surprising theory of cerebellum. Keywords: biomechanics, brain-machine interfaces, cerebellum.