It's been a while, but as I recall, you're correct on that. Certainly, that's one of the
wonkiest sf stories of all time....
Connavar: I'd agree that that is, in general, a good policy. For one thing, if you don't like what you read, you're not expending nearly as much time; for another, you get to see the writer expand their ideas, which can be fascinating in itself.
On
The Caves of Steel -- IIRC, it was Horace L. Gold, who was editor of
Galaxy, someone who had published Asimov for years, and who had had a lot of editorial input during that time. As I recall, he suggested a science fiction detective story, something Isaac was dubious about, but having a love of both fields, took it as a challenge to prove it could be pulled off, something about which there was considerable doubt. (In fact, according to some sources, it was John W. Campbell -- then one of the most powerful voices in sf as editor of
Astounding Science Fiction -- who claimed that the two genres were incompatible. Wiki mentions this, but doesn't go into detail beyond that, but you can find remarks on this in scattered sources both by Asimov, iirc, and historians of the genre.)
I may be misremembering some of this, as it has been some time since I last read Asimov's account of the matter, but for what it's worth....