  This back and forth between Michael and Dvtausk is not going anywhere.  For an up to date response to MWI from the viewpoint of pilot wave theory, I would recommend:  http://arxiv.org/PS_cache/arxiv/pdf/0811/0811.0810v2.pdf  To respond briefly to a couple of points that Dvtausk made earlier, note that I am not saying that particles are hidden—don’t misquote me!—merely that for Bohm the hidden variables were in fact hidden (in spite of loose statements by Bell and others that the particles “are” the hidden variables).  The point here being that much of the confusion on this talk page and in the article has to do with confusion surrounding the basic concepts with which we talk about particles, observables, hidden variables and so forth.  The “hidden variable” section in the current article, for instance, does little to explain what Bohm himself understood by “hidden variables” or why in the world he called his first approach ‘an interpretation in terms of hidden variables.’  Regarding PSI squared and equilibrium thermodynamics, the passage from Bohm is the starting point but already in 1952b (Bohm’s initial response to the “measurement problem”) you have chaotic motions of the subquantum level, and the then there is the article in 1953 where he lays out his own view of how to interpret the Born rule (aka quantum equilibrium hypothesis), and finally you have the Bohm-Vigier hydrodynamic model which explicitly incorporates a stochastic element above and beyond the “deterministic chaos” approach.  But again, for Bohm, the important thing about the rule is that it provides a measure of the probability of a particle actually “being “somewhere-(think beables) rather than “finding” a particle somewhere (think observables).    Also, what is interesting about the Bohm approach is not so much that through p=Psi squared you come to the same results as CI, but rather that it can account for situations in which p does not equal Psi-squared.  Valentini has some interesting comments along these lines which at least brings the theory in line with non-equilibrium thermodynamics and modern cosmology.    Signing off for the weekend.  Someone start a new section!     