German has everyday words that sort people by how well they know a subject.
fachsimpeln
to talk at length about purely professional matters
der Laie
a person without specialist knowledge in a field
ein blutiger Laie
a complete beginner, literally a bloody layman
Da staunt der Laie, und der Fachmann wundert sich.
The layman is amazed, and the expert is puzzled.
das Halbwissen
half-knowledge, superficial knowledge, often in gefährliches Halbwissen, dangerous half-knowledge
das Fachchinesisch
specialist Chinese, the language of experts that laypeople cannot follow
The last word is a reproach. Knowledge that cannot be explained to a layperson also loses standing.