DoomMetal, thank you very much for that article, very interesting. My first impression was that Augustine is too much a black-or-white thinker. An analogy would be that he is trying to solve a quantum mechanical problem using classical mechanics. Naturally the essay is also skeptically lopsided.
Augustine has done a laudable background work, and I hope I can return with details after carefully reading the whole article.
I'm back now after reading the Augustine article and something else, too:
http://www.infidels.org/library/modern/keith_augustine/immortality.html.
I like Augustine's straightforward and uncomplicated writing style, which is not so common among philosophers.
In my opinion immortality is a question which is impossible to settle scientifically, but Augustine tries to do that. The philosophical part of the article does not help much in that direction although there are many good points there. I waited more from the scientific part, but it does not differ much from philosophy.
Creationists notoriously quote single sentences from evolutionist articles as if supporting their own ideas, although the message in the articles is counter-creationistic. It was astonishing to see that Augustine did the same thing to Kenneth Ring.
There is a very tight dependence between the condition of the brain and the person's consciousness, and Augustine dwelled a long time on that topic. However, I think this dependency does not show that immortality is impossible. The hypothesis that consciousness exists only in the brain and ends with the brain is sort of falsified with many observations. That evidence ought to at least make us cautious in building our world view. (I know, the evidence is only anecdotes and results of sloppy research, because that is most plausible and logically it must be so.)
Possible reincarnation does not mean that immortality would be a fact, but Augustine tries to play also it down. Here we have a problem, because he uses heavily the book by Paul Edwards as his source. That means, first Edwards has interpreted the reincarnation evidence without reading the best sources and then Augustine interprets what Edwards has written.
Augustine: "Stevenson's cases then do not amount to even half-way decent evidence. In only 11 of the approximately 1,111 rebirth cases had there been no contact between the two families before an investigation was begun."
I really wonder where he has got this number "11" from. Researcher Tucker writes a review of reincarnation research here:
REVIEW ARTICLE: Children Who Claim to Remember Previous Lives: Past, Present, and Future
Research
http://www.scientificexploration.org/journal/jse_21_3_tucker.pdf
He says that at present there are about 2500 researched cases of possible reincarnation.
Two researchers have reviewed the philosopher Edwards' book. A long review here:
http://www.scientificexploration.org/journal/jse_11_4_almeder.pdf
And only four pages here:
http://www.scientificexploration.org/journal/reviews/reviews_11_4_matlock.pdf