In my paper "Why Occam's Razor", I identify a postulate called the "projection postulate", which in words is something like "An observer necessarily projects out an actual from the space of possibilities" Mathematically, this corresponds to choosing a subset from the set of all descriptions.

My paper shows in essence P+T+K => QM (projection postulate + time postulate + Kolmogorov probability axioms implies quantum mechanics). Apparently (not that I'm any expert on these matters) Kant tried to derive Classical dynamics by introducing this as a "necessary prior", so its quite possible that this idea is not at all new. Cheers Stephen Paul King wrote: > > Dear Russell, > > Bingo! But can a method of definig the "subsethood" be defined? What > distinguishes one subset from another? > > Kindest regards, > > Stephen > ---------------------------------------------------------------------------- A/Prof Russell Standish Director High Performance Computing Support Unit, Phone 9385 6967, 8308 3119 (mobile) UNSW SYDNEY 2052 Fax 9385 6965, 0425 253119 (") Australia [EMAIL PROTECTED] Room 2075, Red Centre http://parallel.hpc.unsw.edu.au/rks International prefix +612, Interstate prefix 02 ----------------------------------------------------------------------------