That Darwinism seems even superficially plausible depends completely on the ability of living things to reproduce themselves without significant degradation.
An attribute of a good sci-fi story is that it should open new vistas for the imagination while, at the same time, not requiring the reader to put up with the preposterous.
A nice thing about being young is that you have no idea how much you do not know.
Keas describes the surprisingly religious role played by much atheistic science fiction. The discussion includes 2001: A Space Odyssey and H.G. Wells’s The War of the Worlds.
My box of books just arrived. Now you know what all of my family and best local friends are getting for Christmas this year.