The Most Wildly-Imaginative, Complicated, Weird, and Epic SF Novel I've Read in a Long Time
It's a bit sad that this book hasn't gotten more attention in the SF community. I think that's partly due to the mistaken attempt by the publisher or author or readers to classify it as Radix #4. These books are all stand-along novels tied *very* loosely by the concepts of height, length, depth, and time. That framework is so open-ended as to be virtually meaningless. But I'm pretty sure there were a lot more readers of Radix, as it got a lot of critics excited and Bantam Spectra gave it quite a push, and the middle novels are far slighter in both length and heft, so perhaps not too many readers ever got round to this.
For that matter, I bought the paperback back in 1989 and have only now listened to the audiobook in 2021, 32 years later (!), so it certainly didn't do Mr. Attanasio any favors in terms of building popularity or momentum. Having checked what he's written since, it looks like he's written a series of historical fantasy novels instead, a totally different direction, which makes me think he was disappointing in the lack of recognition for his SF and moved onto new pastures.
In any case, this book's storyline and structure truly defy description. The amount of characters, both humans and AIs, evil brain-sucking winged spiders, ghosts, zombies, Vikings, and alien super-beings capable of creating whole star systems and move between times and dimensions, is literally mind-blowing and overwhelming. At some point Attanasio's relentless creativity just pummels the reader into an accepting stupor - it's hard to picture any readers really following the story and making sense of it the way the author (I assume) intended. It gets full marks for imagination, but think the scale and complexity and number of ideas just overwhelmed the narrative. Happens when you span 7,000 years, multiple planets, various dimensions, and of course throw in a bunch of time travel through alternative realities (time-lines) as well.
Nobody can accuse the author of being unimaginative, but I think he really just tried to cram too much into one book. If only he could have spread this over 4 books and given more space to the various ideas and storylines, this could have been a mind-blowing epic SF series. As it stands, it seems to be a sadly neglected work of staggering creativity, though far from perfect.