Blake Crouch has done it again!!! Recursion was fascinating, confusing and brilliant!

Dark Matter is one of my favorite sci-fi books of all time so I was almost scared to delve into Recursion - nervous it wouldn't live up to my expectations for Crouch. This book was ambitious. Thankfully, I had nothing to fear. Mr. Crouch's brilliant mind hasn't failed us yet.

Recursion deals with memory - preserving memory, and using it to shift our reality. What a roller coaster ride this was. Can you imagine going back into a specific memory with all the knowledge you have now? What would you change or do differently if given the opportunity for a "do over"?

Barry Sutton is a NYPD Detective who answers a "jumper" call. As he attempts to talk her down from the ledge he learns she is suffering from False Memory Syndrome - vivid memories of an alternate life. These memories feel real and those suffering from FMS have difficulty reconciling the dual memories/lives.

Meanwhile, neuroscientist Helena Smith has devoted her life to memory research. She wants to map memories to preserve them. Her greatest hope is to help people with Alzheimers, Dementia and brain injuries. Ultimately she uncovers more than just a way to map memories. Her research leads to the discovery that causes FMS. Helena and her researchers travel back into past memories. This leads to changes which cause dual timeline memories for everyone involved.

Barry and Helena's stories intersect as they find themselves face to face with the darker implications of the research. Each change comes with a cost. As more and more people suffer from FMS, mass hysteria builds. Are our minds strong enough to handle dual realities? Can multiple timeline memories coexist in the same person? Can the world handle this type of technology?

Recursion certainly made me think and question everything I know about reality. I couldn't help but wonder about those moments of deja vu we all experience. What if there was more to them? Ultimately our memories make up who we are. They are definitely powerful and I love how Crouch explored this topic. It was thought provoking, emotional and made for fascinating reading.

A huge thank you to Blake Crouch, Crown Publishing and Netgalley for the opportunity to read & review an arc of this book.