We disagree about the importance of the literary aspect of SF. Science fiction is literature since it is written, but is it about being "Literary" or appealing to "Literary People"? How much did Heinlein, Clarke and Asimov care about it? I don't know how many people I have heard say that Asimov could not write. ROFL
My point is what did the author know at the time he wrote the work, and what could he possibly have known? Are you saying that does not influence what authors write?
To use H. G. Wells again, what about the "atomic bomb" in
The World Set Free (1914). Now that is truly amazing! Wells was a real science enthusiast. He hung out with scientists. "Experts" he talked to at the time didn't think much of the atom bomb concept. The bomb that Wells' describes is hardly like the real thing. But a real atomic bomb requires knowledge of the neutron and that was not discovered until 1931. And Leo Szilard admits having read Wells' book.
http://en.wikipedia.org/wiki/Leó_Szilárd
It is the entanglement of science with science fiction that makes it important and not merely literature. Though I admit that not all works deserving of the name science fiction are significantly scientific. But usually even those imply that science and technology are important.
There is also:
http://sciencepolicy.colorado.edu/students/envs_5110/snow_1959.pdf
psik