> In particular, what was convincing to me, is how very very similar the cases are and that they happen to tribes living at a stone age technological level with no contact to Hollywood, and that there is a described case from Plato from over 2000 years ago that is identical to modern cases.
This sounds intriguing.
> Case in point, in NDEs there are a couple of common stages, and experiencers go through some or all of these, most often only some. One is traveling from the location of death to a heavenly realm. For westerners this often is flying through a star trek like hyperspace tunnel, while for stone age people they might be in a canoe that travels by itself to a distant island.
Ah, so the similarity is all enitrely in your interpretation of these clearly dissimilar visions.
If I listen to 100 NDEs and in 50 they travel through a tunnel like this or somehow go through space, and in 2 from stone age cultures they travel in a manner apt to their everyday experience and it has those things in common I think it's a fine hypothesis that what they have in common is the nature of what's happening. And in 48 they didn't experience this stage.