Yeah, it shocked me the first time I memorized a deck of cards with a memory palace.
Plus, imagine how well trained muscle memories became since methods would have hardly changed from generations before.
One of the Polynesian navigational methods I have heard described, was laying down in the bow of the canoe and going into a meditative trace, thereby being able to feel the ocean swell, and infer the location of distant islands by the diffraction pattern of waves.
https://manoa.hawaii.edu/exploringourfluidearth/media_colorb...