Amazingly, this is no less cogent or sensical than reincarnation.
It's beneficially proven that Humans can and do suffer from mass delusions. It's proven that light can take on the appearance of that which is not. It is scientifically proven that plants, animals, humans and planets send out radio waves from their brain that other people with high empathy can absorb and have later vivid memories in the form of dreams and visions however sometimes what comes out is dreams stranger then what the human mind is able to rationalize.
What is not and can't be proven is the idea of Reincarnation as it's a spiritual concept and not a physical concept. Spiritual concepts can only be proven in a spiritual reality and physical concepts can only be proven in a physical reality, physical concepts have no use in a spiritual reality unless both are inter-weaved together by natural laws.
I could for example say that your involuntary actions are controlled by the mighty angel Rafiel and you could not disprove me. Perhaps you might find the mechanism for how the Angel controls you involentary actions and perhaps you might not even believe that the Angel controls them even though Angel simply means "Spreading, Pulsing, Inward, Physical, Energy Source" and Rafiel means "Controlling the pathways and spread and movement of the physical energy inside".
You could ask me how I know these things and I would tell you that 'They' tell me of course you might not believe in 'The c-c-Consciousness' but that doesn't mean that it's not there.
The Human body is most strange in that we not only store memories inside of our nervous system but we also store them in physical objects and our brain actually doesn't store any memories in and of itself at all but is simply a device for retrieving them.
My point with all this rambling is that from a Scientific perspective you can't prove spiritual matters in a physical realm and since Science dismissed the Spiritual realm as Physical they will never see Spiritual matters in a Physical reality but differ it to unknown physical phenomenon.