Trying to document my current hobby project, but stuck in the analysis phase. I dont even know what it is. When I try to describe its purpose I get blank looks.

Trying to document my current hobby project, but stuck in the analysis phase. I dont even know what it is. When I try to describe its purpose I get blank looks. People tend to need physical demonstrations to understand whats going on. Its not entirely new, or novel, its definitely not revolutionary, but it is a hybrid of so many things, in a very indirect sense, that its just beyond my verbiage. Not a humble brag, I dont think its amazing or anything. I have just failed to describe it. Have been trying to get a phd I know to look at it, and describe it for me, but he just straight up isnt interested.