Oscar_Cunningham comments on Should I believe what the SIAI claims? - Less Wrong

23 Post author: XiXiDu 12 August 2010 02:33PM

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Comment author: Oscar_Cunningham 04 August 2012 10:41:55AM 2 points [-]

MWI just calculates the wavefunction.

Copenhagen calculates the wavefunction but then has additional rules saying when some of the branches collapse.

Bohm calculates the wavefunction and then says that particles have single positions but are guided by the wavefunction.

Comment author: Quantumental 04 August 2012 11:16:02AM 0 points [-]

But MWI doesn't get the right calculation in terms of probability

Comment author: Oscar_Cunningham 04 August 2012 11:22:02AM 1 point [-]

Good point. I'd say that it doesn't have any calculation of the probability. But some people hope that the probabilities can be derived from just MW. If they achieve this then it would be the simplest theory. But if they need extra hypotheses then it will gain complexity, and may well come out worse than Bohm.