Correct.
Stephen Hawkings had demonstrated skills in well-known areas. He did not just say "I can't speak so just assume that I am brilliant and competent in alls sorts of areas."
Compare this with Fetidman. His thought process is dogshit. Not just his speech and he has never done anything to indicate that he ever had any area of competence.
You know. I have a Russet Potato in the kitchen. Maybe if it could speak I would discover that it is qualified to be a U.S. Senator so let's make it the dem nominee. Nope. Needs to be other signs of being qualified.