Outside Memory

This is worth sharing, and a big reason you need to practice observing enough to actually understand what is going on when stuff moves and functions in the real world, and not in your head.
https://www.liverpool.ac.uk/~rlawson/cycleweb.html

"Kevin O'Regan has suggested that we may use the world as an "outside memory" to save us from having to store huge amounts of information. Since this information can usually be found simply by moving our eyes, we do not need to retrieve it from our brains."

Steve Morris deserves the credit for finding this very useful piece of research.