Hawking's connections with cosmic reality are the ONLY connections he can make; the rest of his body is practically destroyed by disease.
His problem of course is expressing what he knows to the rest of us. His means for communication are much more limited than his knowledge.
But, what is intelligence anyway? "Out of the mouths of babes ..." come great wisdom at times. Where'd it come from?
A person can watch and listen to a Fox News Show and discern and describe the information that is missing from their reports. There is more news
INBETWEEN THEIR LINES than there is ON THEIR SPOKEN LINES. How does one do this--interpolate what is missing? This is a form of intelligence.
What people are learning by this whole exercise in Elitist Top-Down Regulatory Tyranny at this time is, "how to read between the lines."
And that's a useful lesson also.