I think I fall into the camp with Realhuman. There are lots of things that 'could' be in your head. We like explanations. We like things to make sense.

I am interested in some of your sources. I couldn't find anything that verifies there is massive DMT dump when the brain dies. There is a 2015 EEG study that shows a spike in brain functioning after the heart stopped, in rats. I have heard there are fMRI studies of human brains, but haven't seen any journal articles. There is a 2018 DMT article linking DMT to NDE, but it's speculative, not necessarily data driven.

Interestingly, at least to me, in the past NDE's were simply ignored. Now it seems like science is going out of it's way to dismiss it through science. Before something can be dismissed, it actually has to be verified. I have not seen any articles by mainstream science saying NDE's are real, and you probably won't because there are aspects that defy our medical understanding- such as knowing things one shouldn't be able to know- because you were dead.

I have seen lots that say NDE's hallucinations, not real. That implies NDEs are real thing, just not REAL things. Then again, lots of neural scientist say our entire conscious experience is an hallucination. So, even life is dismissed. How can there be an afterlife if there was never any life? Talk about convenience. I especially like the 80 millisecond dilemma, where we aren't making decisions in real time, but that our brain decides something and uploads that into conscious experience 80 millisecond to upwards of 3 seconds. Now, I have read about that fMRI study. So, yeah, we can't trust our brain or our conscious experience of reality.(Michael Gazzaniga is one source. (Book, 'Who's in Charge.')

Should NDE's be studied. Yeah. It's interesting. And, there seems to be evidence that suggest consciousness is not limited to brain functioning. That would definitely be interesting.

Even your ideas of dreams seems bias. "disjointed?' Many people have linear dreams. I do. I even have a sense of time tracking in my dreams that coincides with real world. I always wake before an alarm is set. Dreams may or may not be DMT driven. That isn't established. But the landscape of dreams is much wider than you have given, and can't be so easily boxed dismissed. Even so, most people completely dismiss dream because there is an inherent dream dismissal in our culture. They are meaningful and can be therapeutic. I know that and I am not even a Jungian therapist.

But even though you've given yourself an out by saying 'could' you're clearly in the camp that says no NDE. Which is okay. You want to explain it away. That would make the world tidy and comfortable again. You didn't say 'thank you' to Realhuman. That would have been simple enough. 'Thank you, I validate your point.' You shot him down, 'i got it covered with could.' So you don't want a conversation, you want what you want and you want to echo that into the social universe. Okay. You have an explanation that makes you happy. Yay.

It's a bit of hubris to dismiss Realhuman, or all the folks with PhDs that have been saying there is something to NDEs that doesn't make sense. Throwing DMT as potential nail to hammer this coffin down is just flat reaching. Science loves throwing Occam's Razor around, except when it conveniently goes against them, as it appears to do with this subject.