Just to add to that last reality bit, an oblique take on the issue might be found in Stephen King's novel The Gunslinger, wherein *SPOILER* one reality is actually contained at a submolecular level in another reality (ironically, this time, the real-life reality). So as that space in which the characters' reality is contained is affected, their reality is in turn affected; in this case, I think that the story begins and takes place almost entirely in a different reality than our own, without any invasion or even mixing but with our reality affecting another, leads to an almost completely romanticized and myth-influenced story, with despair or perhaps stoicism, if anything, replacing survival/panic. Woo! Long sentence.

The River of Time, by David Brin. Wow, Amazon has a really old school cover, there. Anyway. This is an anthology of some of Brin's earlier/earliest work, and in that sense if one has read any of his novels or other short stories it's quite easy to tell the difference in the writing. Nonetheless, the writing actually seemed not so important in the sense that the bulk of these stories are speculative science fiction, and the ideas themselves that were conveyed well enough by the writing to give me chills at the end of nearly every story, as if each one was a particularly good Twilight Zone or Outer Limits, what with their twists. As a sidenote, Brin (as with his other books) adds quite nice elucidating commentary between stories, which is especially helpful with this kind of fiction.

Now, What Might Have Been (Vol. 1) as edited by Martin Greenberg and Gregory Benford, on the other hand, basically faceplanted in terms of how much I enjoyed it. These stories are also speculative, but in the sense of "what if..." ideas in terms of whether certain events might not have happened or people existed, etc. Great idea - and the first story with it's contemporary-time-wise but massively different global culture (based around Saxons, Franks, Persians, and Iberians as the dominant political players) sucked me in. But every story after that would have been eminently more enjoyable as an essay detailing what idea the author was basing their story around. It wasn't that the ideas were bad or boring (well, several of them were), but more that the writing was bad and/or boring. Ah well.

Giant Octopus....Shark...Throwdown! - hmm, sharks having been and evolving to be consummate predators for millions of years, octopus has full-body neural net brain power, and possibly tentacles that are worth expending for that much food....hmmm....