Actually, proprioception can be fooled quite easily. There are a number of different examples involving phantom limbs, vestigial tails, redirected walking, etc.

Actually, proprioception can be fooled quite easily. There are a number of different examples involving phantom limbs, vestigial tails, redirected walking, etc. Almost none of the human senses are absolute. They are holistic, subjective, and relative to experience (both recent and past), culture, age, etc. Honestly, the fact that we can get any semblance of objective communication of our senses together, based on how wonky and unreliable the individual parts can be, is amazing.