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Then it occurred to me --- Wolfe's alien's somehow aren't that alien either. But in his case it seems to me deliberate. In his blurring the boundary of fantasy and science fiction, his aliens are somewhat like his undines etc.: slightly altered human beings for a universe which is somehow slightly changed from ours. corncrake
That is definitely the case for all his artificial creatures, such as the hollow men, (and more noticeably in the Long Sun) -- they are all made in the image of G*d, and all can be saved. So, they have a commonality with human experience. In contradistinction to PK Dick, where humans are vulnerable to becoming automata.
David Duffy.