> perfectly simulate our precise physical characteristics down to the exacting neural biochemical fluxes in our brains. At every moment in our lives, they'll un

> perfectly simulate our precise physical characteristics down to the exacting neural biochemical fluxes in our brains. At every moment in our lives, they'll understand every thought we've ever had - already had and will ever have - better than we ourselves could conceive. This assumes that the human experience is deterministic, and that all factors that determine the outcome are knowable. I don't buy either of those assumptions. There's a book that ends with the distant descendants of humanity using a combination of a "read-only" time machine, advanced bioengineering, and virtually unlimited resources to resurrect every human being to the state just prior to their death - but I'm not 100% sure what it was called, and that was a plot twist at the very end of the book, so even if I'm right I wouldn't be able to share the title without it being a significant spoiler...