During my Situation Normal author commentary I mentioned a book I read as a kid which was a big influence on the worldbuilding of my own novel. Shortly thereafter, chance reunited me with the correct metadata for the book: Twistor, by John Cramer, published 1989. I bought a copy and went through it, looking to nail down the influences.
My original plan was just to skim the book, and the first part is very skimmable; but pretty soon I was reading the book for real, because not only does it get really interesting after the setup is complete, it turns out the influences on my work were not limited to Situation Normal. This isn't too surprising because, looking back, there's a good chance Twistor was the first science fiction for grownups I read. So, big thanks to John Cramer. Here's what I found:
First, I misremembered the goal of the scientists when I wrote my author commentary. They're not trying to create a teleportation device; they're doing Ph.D-level research on a combination of real physics and technobabble. The closest we come to a practical application has to do with a new medium for data storage. This would presumably replace the retro-future "laser disks" we see the characters using. I guess technically CDs are "laser disks"; we should have called them that but I understand why we didn't.
However, I was more or less right about the plot device that comes out of these experiments: a phenomenon that can be exploited to swap matter among the six parallel universes that inhabit the same space as our universe. This phenomenon is at the core of the children-in-peril subplot, a couple of pre-Jurassic Park siblings who are caught up in an improbable case of skip overlap (to use Situation Normal terminology), very similar to what happens in Chapter 8 of Situation Normal. There's a subplot about sighting the stars on the other side of the skip bubble, similar to how the cops in Situation Normal will track you when you skip. Nothing comes of it, though, since in Twistor those are completely different stars that formed in the parallel universe.
That skip-overlap incident also slices off a goon's hand at the wrist; and, in the book's goriest scene, the twistor phenomenon is used to dig a spherical chunk right out of another goon's brain. This is a form of murder that the Seattle police are surprisingly cool with. I get it, I wouldn't want to write about that investigation either. Characters in Situation Normal joke and speculate about injuries from skip overlap, but it doesn't happen onscreen.
As far back as I can remember I've imagined forests of giant trees as being a standard science fiction trope—that's Alien Ring in Constellation Games. But apart from Twistor, all the examples I can think of are a) fantasy and b) a single world-spanning Yggdrasil-like tree, not a forest of trees that are just really big. I suspect I got that idea from this one formative book, whose shadow universe features a forest of very memorable giant trees.
Those giant trees have a scent like cedar. That may be why I named the planet in Situation Normal Cedar Commons, but that's a big stretch IMO. I wouldn't have remembered that detail.
Similarly, there's a fantasy story-within-the-story, analogous to the "Princess Denweld" adventure in Situation Normal, but I didn't remember that from my initial reading, and it's such a common technique that I can't imagine I got it from here; especially since I was consciously parodying a different book when I wrote "Princess Denweld".
A totally random thing I did remember: at one point a character sings a Pynchon-esque song and I remembered music that I made up for that song! I know it's my music because a) there's no record of this song existing outside Twistor and b) when I came up with the music, I dropped a word from the lyrics and got the meter wrong. No influence on anything, but a fun example of all the weird stuff we have buried deep in our memories.
Twistor contains a fair amount of realistic 1980s password-cracking and 1337 skullduggery—man-in-the-middle attacks, false-front BBSes, etc. Most of this skulduggery is carried out on "HyperVAX" systems, and exploits real features of VMS. As a kid I lapped this up—I think it was my first glimpse of the cool things grownups could do with computers. I was way more interested in concepts like email and BBSes—within five years I'd be running my own BBS—than in any of the hax0r stuff.
This is one of those sci-fi books where the climax involves spreading the forbidden knowledge to all and sundry. I agree that's probably the best move in the situation the book sets up, but I can't say I share the narrator's optimism. I feel like the jerk at the wedding saying "I give this planet six months." Anyway, the method by which our heroes spread the forbidden knowledge is... mailing list spam! They evade the watchful eye of the FBI by sending out their preprints through a BITNET distribution list, rather than making an easily-stopped trip to the FedEx store.
In a very useful afterword, Cramer does his own author commentary, separating physics fact from speculation and explaining that the hax0r techniques described are "all known techniques which have been used to penetrate protected computer systems", but that they're all now being defended against and you should not use them for real. That's a little disingenous IMO. Many of these techniques are alive and well today—installing a trojan keylogger on someone's computer to capture their passwords—even though VMS itself is dead.
Finally, I'm going to reproduce the last two paragraphs of the afterword verbatim, because it's a great piece of computer history:
BitNet is an actual worldwide computer network that is already in very active use by the physics community. However, at present it is used primarily for "mail" messages between users and for the transmission of data files and programs. It is not in general use for the transmission of scientific papers and preprints because these usually include a number of figures; for example, line drawings of equipment or data plots. Although CompuServe's GIF standard, Adobe's Post Script, and several others are looming on the horizon, there is presently no universal graphics standard that would permit the routine inclusion of figures in scientific papers, and so they are still distributed by conventional mail.
It is a good bet that this will soon change. The scientific journals published by the American Institute of Physics, e.g., Physical Review, already accept manuscripts submitted on computer media. It is very likely that within a decade physics papers for journal publication complete with drawings and figures will be submitted and preprints of such papers will be routinely circulated by BitNet or its successor. One can only hope that publishers of works of fiction (like the present novel) will also eventually emerge from the nineteenth century and adopt similar technology.