Permutation City's central trick isn't technological foresight—it's the casual normalization of an unprovable transaction.

When Paul Durham copies himself and then stops running the original simulation, the Dust Hypothesis permits him to believe the copy continues existing in substrate-independent space, unverifiable and unobservable, completely dependent on accepting a metaphysical claim that has no empirical content.

Egan doesn't stage this as a horror but as a rational actor making a rational choice. The novel's architecture makes that choice feel inevitable: you accept the Dust Hypothesis or you accept that copies are disposable, and there is no third path.

This is precisely the contract we sign when we upload files to cloud storage. Google doesn't promise your data persists in any physical location—it promises persistence, period. We cannot verify the substrate, we cannot audit the servers, and we accept that our selves exist in some location that feels adjacent to real space but operates on pure institutional trust.

Permutation City understood this before cloud computing was ubiquitous, showing that we don't need the technology to exist in order to accept the bargain. The novel's genius is showing we accept the bargain first, then build the technology to justify it—and we've normalized the unfalsifiable by calling it convenience.