There are infinite parallel universes, and cutting edge technology has enabled travel across the multiverse to other Earths with sufficiently similar world conditions. But it turns out in order to traverse to another world, the original “you” from that place needs to be dead, otherwise the journey brutalizes you. So the well-off science types of Wiley City rely on folks who’ve had hard lives on the other side of the Wall, those who’ve scraped together an unlikely survival serve as their interdimensional couriers, at least until the transfer of information across worlds can be automated. Cara is such a traverser, the most valuable at her organization for the high number of worlds on which she’s deceased.⁣
⁣
The premise of this novel is one of those so-perfectly-tailored-to-my-interests blurbs, riffing on quantum theories with the gritty underpinnings of examining class