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  httparxivorgPScachearxivpdfvpdf  To respond briefly to a couple of points that Dvtausk made earlier note that I am not saying that particles are hiddendont misquote memerely 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 b Bohms initial response to the measurement problem you have chaotic motions of the subquantum level and the then there is the article in  where he lays out his own view of how to interpret the Born rule aka quantum equilibrium hypothesis and finally you have the BohmVigier 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 somewherethink beables rather than finding a particle somewhere think observables    Also what is interesting about the Bohm approach is not so much that through pPsi squared you come to the same results as CI but rather that it can account for situations in which p does not equal Psisquared  Valentini has some interesting comments along these lines which at least brings the theory in line with nonequilibrium thermodynamics and modern cosmology    Signing off for the weekend  Someone start a new section