Blake Crouch is a master of churning out the kind of speculative fiction that actually makes you … well … speculate. The last one I read (Upgrade) was about a man genetically altered by his mad scientist mom. This one reminded me of Dark Matter, which I watched on Apple TV a few months ago, and it had very much the same feel: a scientist working on a cure for Alzheimer’s discovers that the machine she’s working on to access lost memories can actually send people back in time to relive those memories again, and thus change the present (or their future, if you will).
I know! Weird, right‽ The idea is something that I’ve read about before: a school of thinking that posits time is not linear; we only perceive it that way because our fragile three-dimensional thinking would be unable to cope with the reality of everything, everywhere, happening in the same instant. Imagine knowing that you were born, lived , and died (along with the entire universe) at exactly the same moment. And in that case moving to a different point in time “linear” time is as simple as crossing the street.
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