I read this a while ago. Excellent choice. I definitely value it up there with Eon. Have you read The Chronoliths, also by Robert Charles Wilson? I didn’t even realize it was the same author until after I’d read them both.

Greg Bear’s Eon? Haven’t read it yet, but will soon on your recommendation. Haven’t read The Chronoliths either, though this one was already on my reading list and it promises to be just as bizarre as Spin (a bizarreness I would have erstwhile thought impossible to pull off). Speaking of Spin, its sequence, Axis, is due for September 18. It is the first book I’m counting the days to.

I second the Eon recommendation – great, modern hard sci-fi.

Actually another good suggestion if you want a well written, engrossing and yet different plot I found is: The Metamorphosis of Prime Intellect by Roger Williams.

Axis^AM is out!

Finally read Axis. It’s a so-so book, nowhere near as good as Spin (which I’ve reread here and there and which has solidified in my mind as one of the best scifi books ever). Not much happens in Axis, not much is revealed (though I rather liked the explanation of what the Hypotheticals were up to in this novel), and the characters ranged from dull to detestable—there’s not a single heroe in the whole book, no one who is really up to the marvelously strange post-spin universe. But I did end up feeling awe and reverence to the profound strangeness the universe may well hold and that made it all worth it.