This came to me in a dream:
Not only is multi-versal theory true, but crossing the boundaries between alternate and parallel realities has become practical.
One of the more unexpected outcomes of this is in the medical field of organ donors.
After all, who better to provide a replacement organ than a you from another reality?
The entire process is carefully vetted for compatibility (no more than six degrees of reality separation), as well as consent by all iterations involved.
So now the real story begins...
You're in need of a replacement organ and you get one from one of your iterations who very recently passed.
All seems well at first, but then your body shows signs of rejection.
This shouldn't be possible.
AT ALL.
The doctors do extensive tests, and discover that the donor may have met all the criteria for being _you_ in that alternate reality, but in fact was not genetically related to you at all.
Thus the big mystery: if they were _you_ in that reality by all subjective accounts and criteria, then how did this other person replace _you_ in their reality?
...And I woke up with a stomach ache, because of course in my dream that was what I had replaced.
Not only is multi-versal theory true, but crossing the boundaries between alternate and parallel realities has become practical.
One of the more unexpected outcomes of this is in the medical field of organ donors.
After all, who better to provide a replacement organ than a you from another reality?
The entire process is carefully vetted for compatibility (no more than six degrees of reality separation), as well as consent by all iterations involved.
So now the real story begins...
You're in need of a replacement organ and you get one from one of your iterations who very recently passed.
All seems well at first, but then your body shows signs of rejection.
This shouldn't be possible.
AT ALL.
The doctors do extensive tests, and discover that the donor may have met all the criteria for being _you_ in that alternate reality, but in fact was not genetically related to you at all.
Thus the big mystery: if they were _you_ in that reality by all subjective accounts and criteria, then how did this other person replace _you_ in their reality?
...And I woke up with a stomach ache, because of course in my dream that was what I had replaced.