Whilst this has been specifically targetted at Shakes on the 'Was Jesus Gay?" thread, I have widened its applicability here, partly so as to avoid breaking the forum rule on using posters' names in thread titles.
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Hi Shakes, here are your challenges for the next year.
1) Produce reference to a scientific document, that has been peer-reviewed or otherwise validated, that shows that your belief that the physical realm is all there is, is valid?
2) Produce reference to a scientific document of the equivalent status of something like the Theory of Gravity that in any way deals with the spiritual realm.
Science is concerned with, and deals most effectively with the physical realm. Its methodology is based upon the physical realm, so I cannot point to a scientific document which explains any other supposed 'realm', except to explain it in terms of the physical.
However, I am quite happy to accept the possibility of a 'spiritual/supernatural realm' if and when an intersubjective method becomes available which defines and validates it. As, to date, this has not happened, I cannot see any reason for me to believe that this 'spiritual/supernatural realm' actually exists.
I cannot therefore produce reference to such a peer reviewed scientific document as you request. I would hope that you, yourself, might produce reference to one, as it is you who seem to be requesting such validation for a supposed 'spiritual/supernatural realm'. I would, of course, be happy to analyse such a document, as would the whole scientific community, I feel sure, with a critical but not a jaundiced eye.
It seems to me that a much better title to your thread would have been "A Challenge to those who believe in a Spiritual Dimension for 2016"