Yeah, proprioception in general is amazing. I always find it fun to do stuff like close my eyes, then quickly spread my arms apart, and just as quickly bring t

Yeah, proprioception in general is amazing. I always find it fun to do stuff like close my eyes, then quickly spread my arms apart, and just as quickly bring them back together and try to touch specific finger tips together; seems to be generally easiest with index and middle fingers for me. I also enjoy being able to extend that proprioception to tools - being able to feel the engagement of a screwdriver with a screw head, etc.