I guess I'd throw in a couple of things about NDEs:
1) First of all, claiming that there's only one kind of near death experience vision (namely, the subspace-like tunnel) is false, because the vision depends on the culture. The Japanese, for example, cross a river because their culture gives a lot of importance to that action;
2) I have the feeling that in the future people would laugh at our current way to analyze and discuss NDEs just like we laugh at the "Earth is flat!" claim and other outdated claims. Research is in progress and Science might be able to provide us with reasonable explanations very soon. Keep in mind, guys, that the capabilities of human brains are not fully known.