Common knowledge/information is a level of the scaled Knowledge Hierarchy. Knowledge may be ciphered/encrypted by various means.
Common knowledge is often what is the most easily understood elements, public knowledge, or rooted in an intuitive approach. Among skilled professions, such levels of knowledge are usually possessed by trade/skill Apprentices. Common Knowledge encompasses Primitive, Rudimentary, and Accomplished Learning – Acquire, Study, and Recall of Knowledge.
Example Scope of Typical Knowledge: “Humans walk on 2 legs, live in homes, have babies, and as mammals have live births.”