Greg Egan: Diaspora (2015, Night Shade, Night Shade Books)
paperback, 352 pages
Published Jan. 6, 2015 by Night Shade, Night Shade Books.
Content warning Spoilers
Themes revolve around the meaning of life for individuals, which resonated with me. The book is really heavy on the technobabble.
I've seen it described as "diamond-hard SciFi", it might even be an understatement. It starts off being confusingly abstract. After ~15% it gets more coherent, slightly more corporeal, though never entirely so.
Even through its abstract and detached universe, it revolves around modern issues of reality, subjectivity of perception and even memetic reality bubbles.
There's a lot to get from this, provided you can keep your mind clear enough to absorb the weirdness of it all.
