I never really warmed to any of his stuff. I'm trying to recall some titles; he sort of hit it big in the late 70s. I remember reading some fact article in
Analog where he talked about "cool words," one of which, according to him, was "Antinomy" (DEF: "a contradiction between two apparently equally valid principles or between inferences correctly drawn from such principles OR a fundamental and apparently unresolvable conflict or contradiction").
Then, a couple of months later I saw a story of his titled "Antinomy."
He just always seemed like a very clever high school student to me.
I suspect his arrested development probably owes a lot to his dope-head habits.