You keep going back to the black swan error.
Again, the black swan story does not apply here and shows you don't understand the story at all. Strawman fallacy.
The fact is some people do claim that at least one person has come back from the dead.
Hopefully someday, you'll understand that claims aren't evidence of anything and that claims are made all the time that have no evidence. In fact, you are doing that right now in this thread, making claims that have no evidence.
To simply close your mind to this claim is prejudice, it is not scientific.
Yet, no scientist would ever take that clam seriously simply because they understand things about nature that you do not. It is YOU who is closing their mind to knowledge and understanding and are instead invoking magic.
You state dead people do not come back from the dead, and yet some people make a different claim.
Wrong, it is not my claim, it is common knowledge that people don't come back from the dead, science will support that with evidence. Those who make the claim in contrast to science are the ones who have to show the evidence and prove people come back from the dead. That would be you.
So, prove it.
Now one possibility is that they are insane or making it up or delusional.
Exactly. Now you're talking sense and are being reasonable and logical. Well done.
Another possibility is that they correct.
Yet, there is no evidence to support them. None. And, not only that, they have to show how dead tissue can come back to life. Of course, they can't.
A scientist may well start - and I would be surprised if they did not, with plenty of skepticism. After all, dead people don't normally come back from the dead.
Since scientists understand biology and the fact dead tissue cannot be reanimated, no scientists would bother with such a ridiculous claim. Can you find any research on bringing people back from the dead? Anything at all?
So if a dead person did come back from the dead, it would certainly be something investigating.
But, there's nothing to investigate because no one has ever come back from the dead and scientists already understand biology and the fact dead tissue can't be reanimated for obvious reasons.
But you, no - you shut your eyes and simply repeat your mantra "all swans are white, all swans are white, all swans are white". Hence the question is not about continuing your prejudice but about examining the evidence and seeing where it leads.
But, there is no evidence to examine and there is no prejudice of people coming back from the dead. It's all about your ignorance of science, facts and evidence.