Nondualism vs Dualism

[Angrboda]

Let's say that a NDE was observed, that is, someone, such Pam Reynolds, had all of the blood drained from their brain, was flat-lined and was unconscious, and yet, witnessed physical events in the real world while they had no brain activity, a state that is equivalent to clinical death.

What materialistic explanation could there be for such a phenomenon, if it such were ever observed under controlled conditions?

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Exactly what observables would confirm an NDE and how would they demonstrate the existence of the non-material or the soul?

Let's say that I could claim to foretell the future, and so, you, an experimenter, decide to test my claim of "prophecy".  I claim that I could predict the outcome of 1,000 tosses of a fair coin that you, a scientist, are going to make in the future.  I write my predictions down, seal those in an envelope and give that to a trusted third party, say, a notary at a prominent law firm.

You, the scientist, conduct the experiment, recording your results, which you then provide to the notary.  In the presence of you, me and many others, the notary opens up my sealed envelope and compares my predictions to your outcomes, and they are exact.  What physical explanation would you propose, especially, if I am able to replicate this experiment with a dozen other scientists on every continent in the World (including, Antarctica)?

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Are you saying there isn't a material explanation for either of these if neither I nor anyone else can give you one? Because that's an argument from ignorance and the conclusion invalid.

How exactly would predicting the future demonstrate the non-material?