Key questions of the first argument: what are the relevant qualities of testimonial data to be included as part of an analysis of whether NDE experiences are veridical? And this is tied to the question: what would evidence for NDEs being veridical look like?
(1) Reducing the effective sample size of testimonials to ones which are relevant for studying whether the accurate statements arose because of the NDE.
(1i) This was done through applying the aforementioned filters on observational data to preclude confounding factors, leaving few testimonials.
(2)If NDEs were in the aggregate veridical, we would expect accurate descriptions during NDEs because of NDEs to be common.
(2)i This is established through the door analogy. If a person is exposed to a door, they will see a door if the door is there because the door is there (if it's there). This would give a high proportion of accurate descriptions in those cases which satisfy the criteria.
(3) We do not observe many cases of NDEs that satisfy the filters.
(4) The rarity of accurate descriptions in testimonials satisfying the filtering criteria are consistent with these phenomena arising out of a highly improbable random mechanism.
(4i) More detail: with the door example, accurate descriptions satisfying the filter are too common to be the product of solely rare chance.
(5) There is not enough relevant data to support that NDEs caused the accurate statements.
(5i) relevance being established by the filtering criterion. — fdrake
Concerning (1) and (1i), it has not been shown, and it's purely speculation that the filters that you propose would have a negative affect on these testimonials. While it's true that these testimonials would either benefit or not from such an analysis, it has not been demonstrated one way or the other.
Concerning (2) and (2i), There have been studies that show that NDEs do give accurate descriptions.
And those that have done the studies break down what's common to NDEs, as I have done, only using percentages. You give the example of the door, but as I've answered in a previous post, the door analogy is not complex enough, it doesn't have the complexity of normal veridical experiences. Moreover, the one thing that stands out in these testimonials is the OBE, which you seem to believe in. If one believes people can have OBEs, then how can one not believe that one can have accurate descriptions of their OBEs? Moreover, how is having an OBE not evidence of consciousness extending beyond the body? Unless your contention is that the OBE is dependent upon the body, but then the question arises, how are the testimonials of an OBE that is dependent on the body, any different from the OBEs people describe when the brain and heart are not functioning? How can you believe the testimonials of the former and not the latter?
Concerning (3), this again is speculation, since a study of this sort has not been done (as far as I know). Thus, one is within his/her epistemic right to conclude that the testimonials are veridically accurate. Unless you know of a study that shows that your filters rule out the accuracy of the testimonials, then your conclusion is based on what might be the case. One can rule out any testimonial based on some possible study that might show that they are not accurate or veridical.
Concerning (4) and (4i), again this is pure speculation, there has been nothing to demonstrate this to be the case. The idea that the accuracy of the testimonials can be reduced to randomness demonstrates a lack of study of the testimonials. I point this out because I believe in an earlier post you did say that you hadn't actually studied NDEs - not just read about them, but actually studied the testimonials.
The door example, I already addressed above and in an earlier post.
Finally, (5) and (5i), again speculation.
I'm not saying it's not possible that these NDEs cannot be explained in other ways, or discounted by a careful statistical analysis. I'm saying that given my own studies, and the studies of others, there is no other explanation or study that has been done to negate these accounts.
For your argument to work you would have to show more evidence to support your conclusion.
Key questions of the second argument: what would the descriptions in NDEs have to look like to be consistent? Can we describe a given person's NDE before it happens with a sequence of non-disjunctive statements? Why would the sequence taking a disjunctive form establish the non-consistency of NDEs?
I think the difference between your Alaska example and the door example, and the differences between each and a particular NDE are illustrative here.
The door example is different from your Alaska example. The door example is a model of a simple veridical perception, the Alaska example's 'parts of the state' are generated by the observed thematics of NDEs, and so can always be made consistent descriptions of NDEs in the aggregate through iterated disjunction. This will not help us predict the content of a particular person's NDE other than saying something like 'it is likely to contain an OBE and have at least one of these thematic sensations within it'.
You have aggregated the general thematics of the testimonials and are now claiming that they are consistent based off of the idea that they obey these general thematics. The door is consistent, people see the door if the door's there. We cannot tell 'if the door is there' - some kind of representational truth- with the general thematics of NDEs, since of course particular NDEs are likely to satisfy some subset of the derived thematic properties of their aggregate! Furthermore, if we could tell this from typical NDE content descriptions, the testimonials which satisfy the filtering criteria are likely to be far more common.
Points of Commonality and Difference — fdrake
The door example
is an example of a simple veridical perception, which is why it won't do when compared with more complex NDEs. NDEs are good examples of everyday reports, they are virtually identical with everyday testimonials you might get when reporting on an event. Thus, unless one has good reason to dismiss them, without speculating on what
might rule them out, I contend there is enough there to warrant the conclusion my argument makes.
The door example although not as complex as general NDEs does have a correlation to NDEs in the sense that nearly 100% of those who have an NDE report not only being out of the body while the body is still functioning normally, but also being out of the body when the body is virtually shut down.
My contention is that based on the research of others, and based on my own research there is enough consistency in these testimonials, and there is enough specificity within the millions of accounts to warrant the conclusion my argument makes. The same reports are given over and over again, not just a few here and there, but many millions of accounts.
One doesn't have to do a statistical analysis to know the testimonials are consistent. Simply reading them will suffice. Knowledge here is not a matter of statistical analysis, or a matter of what science might or might not say. Anyone who takes the time and effort to read the accounts, and not dismissing them out-of-hand can see there is something extraordinary here.