This is a novel by Blake Crouch, billed as un-put-down-able. Some people rave about this book. I am not one of those people. It is not because the physics and quantum mechanics are over my head; those are explained in an accessible, almost charming manner. I think I just couldn't suspend my disbelief enough to accept happenings toward the end of the book.
Jason Dessen is a physics professor, happily married with a teenage son. Then one night he is abducted, asked if he's happy with his life, and wakes on a gurney surrounded by people in hazmat suits. They show him true deference, for in this world he is a scientific genius who has accomplished the impossible. Which world is real? And how can he get back to his family if that is the life he desires? A science - fiction thriller that I thought was okay, but that many others like.