Hi All in this thread.
The problem of "existence/ non- existence" is cleared to some extent in
http://arXiv.org/abs/physics/0703043 , V5 (and may be the first couple of pages in V1).
If briefly - there doesn’t (and, it seems, - can not be) exist nothing else unique utmost infinite set "Information" – all what we call "Matter", "Consciousness", etc. – are some subsystems of the elements (subsets) in this Set and so all "are the words". At that an information in the Set can be in fixed (photo picture, an explosive in a box, etc.) and in dynamic (a process photographed, explosive after detonation) modes.
The Set Information has unique properties, including (relating to this thread) – every element of the Set contains all infinite number of others as "not-I" information; at that, e.g. – an element, even if it exists in a dynamic mode in "present state", "knows" it’s fate in past and future. As well as full information about any "existed" element (so the element itself) – was known (the element existed) always; e.g. the information about our Universe- including sapiens elements in this Universe- was known infintly far before it’s creation.
So in the set Information every element is connected to any other and undergoes to infinite interactions, but in some conditions there can be realized some "stable" subsets, e.g. – our Universe, when the interactions with main Set are reduced to QM scale; etc. – see the link...