>Art wrote:

>> There are a series of lectures given by physicist David Deutsch
>> which can be viewed here:
>> http://www.quiprocone.org/Protected/DD_lectures.htm
>> which concern theoretical quantum computation.
>>
>> In the first lecture, the viewer is asked to discount all the
>> other interpetions of QM and take seriously that multiverses
>> are the reality and the only valid interpretation. However,
>> I found nothing at all in any of the presentations that
>> makes his case.
>>
>> It seems to me that this is another case of dishonesty
>> in science. If David had started off by saying something
>> like, "Ok, my references to a multiverse are just a game
>> I play mentally ... and prefer to consider multiverses as
>> actual or real rather than a artifice ....", I would admire
>> his intellectual honesty. All he's doing, so far as I can
>> tell, is following the "logic" and rules of QM ... the
>> multiverses explanation/interpretation is irrelevant.
>>
>> Why do so many top notch scientists choose to engage
>> in religious wars?

>
>He's a scientific realist ("the success of theoretical science would
>be a miracle if its entities or etc didn't have ontological existence
>or blah, blah"). He therefore doesn't like logical empiricism, which
>even though a virtually dead faction of PoS today, it still seems to
>hold sway in QM (with the non-realist Copenhagen Interpretation). He's
>stated before that he dislikes Bohm's Causal Interpretation, Cramer's
>Transactional Interpretation, and etc because he considers them "many-
>worlds" in disguise, trying to fly under the radar.
>He has claimed that his "multiverse" is testable, even though it may
>actually require the advent of quantum computers or etc to be such.
>
>As far as individuals go (not the scientific method) there are
>probably plenty of realists or metaphysical naturalists in the other
>sciences (especially biology), but those same people seem to curiously
>regard realists as "mavericks" in microphysics.