this post was submitted on 21 Jul 2026
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The science in Permutation City is truly mind-warping, if you really try to wrap your head around it. One of my favourite books.
Egan's short story collection Axiomatic is full of heavy concept scifi in a similar vein to it.
Yeah, knowing a fair bit about the way computers actually work at the hardware level, some of the details of how the virtual world functions are hand-wavy and kind of magic-disguised-as-technology. But Egan makes more of an effort to try to explain how the simulation works than most other fiction that describes similar virtual worlds - and ultimately the crux of the story is how people behave in a world of their own making.