This often depends on how much knowledge we bring with us to the system. The structure of society make determinations for us.
Standards evolve from social norms.
This is too many things for teh typical person to remember off hand. Most people are lost without some sort of daily planner or organizer units. Stored without reliance on understanding of why or on internal structure. How we learned the alphabet, arbitrary codes, rote learning Rote learning is difficult, time-consuming. Difficult to generalize or use for problem solving or error correction.