Why Bohm ' S Quantum Theory ?

In his recent article on "Quantum theory without observers" [1], Sheldon Goldstein raised a number of important questions about quantum theory. Even though I cannot quite understand what a universal physical theory without any concept of observers could mean, I agree with many of his critical remarks. Bell, who once objected "against measurement," also pointed out that Bohm's quantum theory depends on the assumption that only its hypothetical classical variables can directly affect the consciousness of an observer |2]. However, Goldstein's characterization of the consequences that have to be drawn from his criticism appears one-sided, since he neglects many essential aspects. In particular, he does not mention at all that Bohm's classical trajectories can neither be experimentally confirmed nor refuted if the theory is exactly valid. It is always possible to postulate otherwise unobservable (hence arbitrary) causes for stochastic events. Bohm's presumed ensemble of classical configurations is merely dynamically consistent because of their presumed unobservable dynam-