I wouldn’t even know how to define “will be revived” if time travel were possible. (Assuming that the world-line of a person is continuous and time-like, it means “there’s some t in the future such that the person is in the “not alive” state shortly before t and in the “alive” state shortly after t”, which under these assumptions is either true in all frames of references or in none of them. If time travel is possible, then there might be frames of reference in which there are two copies of the person at the same time, one dead and one alive...)
I wouldn’t even know how to define “will be revived” if time travel were possible. (Assuming that the world-line of a person is continuous and time-like, it means “there’s some t in the future such that the person is in the “not alive” state shortly before t and in the “alive” state shortly after t”, which under these assumptions is either true in all frames of references or in none of them. If time travel is possible, then there might be frames of reference in which there are two copies of the person at the same time, one dead and one alive...)
I was thinking magical future brain-scanning before information-theoretic death.