In other words, express your command of a subject by how simple you make it appear, not by demonstrating how impressive and complicated the subject is.
I remind myself of this concept routinely, and struggle to reflect it in my writing and peer communications.
Your first comment also dumbed down the exact same material - but in a different way. In the present day, among computer users and maybe people interested in finance, I have noticed the use of terser expressions, dense walls of text and shorter words to approximate the meaning of longer concepts (e.g. "moat", "sticky") to avoid recreating 2000+ word wikipedia articles.
Your first comment and the earlier commenter suggesting 'coca cola' having 'invented' santa claus (the user didn't mean the dictionary definition of invented), where two people are using language that has moved on from the dictionary definition, reminds me in some way of this essay by George Orwell.
https://www.mtholyoke.edu/acad/intrel/orwell46.htm
I prefer the present-day contracting "meaning concentrating" style of abuse of language rather than the olden-day expanding "meaning dilution" style of abuse, however both make for uncertain reading!