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Jack comments on A note on the description complexity of physical theories - Less Wrong
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I'm actually pretty sure the Copenhagen Interpretation isn't complete/coherent enough to actually be turned into a computer program. It just waves it's hands around the Measurement Problem. The Occam's Razor justification for people want to make for Many Worlds needs to be made in comparison to the interpretations viable competitors like de Broglie Bohm and company.
I can't argue with that.
Bohm's theory is one of those hidden variable theories, which according to EPR must have something like faster than light signaling?
It is a hidden variable theory and as such it is non-local but the non-locality doesn't imply that we can use it for ftl signalling. The main problems are a.) you need to do weird things to it to make it Lorentz invariant and B.) it is less parsimonious than Many Worlds (as all hidden variable theories probably will be since they add more variables!). On the other hand it returns the Born probabilities (ED: which I guess I would argue makes it parsimonious in a different way since it doesn't have this added postulate).
I don't really know enough to make the evaluation for myself. But my sense is that we as a community have done way to much talking about why MWI is better than CI (it obviously is) and not nearly enough thinking about the other alternatives.