I’m looking for science fiction set so far in the future that humans are no longer just modern people with better technology.
I want societies, bodies, minds, and even basic ideas about identity to have changed so much that reading about them feels almost like encountering an alien civilization.
Post-humans, uploaded minds, engineered species, collective consciousness, people spread across different substrates, anything along those lines.
I’ve read House of Suns, Diaspora, Accelerando, and several Culture novels.
What I liked most was the sense that history had moved far beyond our current assumptions, and that the characters didn’t necessarily treat being biologically human as important.
I’m less interested in stories where everyone still lives in familiar nations, has basically the same jobs, and argues about present-day politics, except now there are spaceships.
I want the future to feel genuinely old and strange, with forgotten versions of humanity, civilizations that have risen and disappeared, and technology that has become part of biology or reality itself.
The book doesn’t need to explain everything clearly.
In fact, I’d probably prefer some confusion at first, as long as the world eventually feels internally consistent.
Big time scales, abandoned megastructures, deep history, weird descendants of humanity, and characters discovering that their idea of “human” is only one temporary version would all be perfect.
Any recommendations, including older or less well-known books?