>From: "Dan Minette" <[EMAIL PROTECTED]>
>> >
>>
>> > For a quantum system we can calculate the wavefunction to arbitrary
>> accuracy.
>> >
>>
>> We can, until the wavefunction collapses. Then we can calculate no
>further
>> until we determine which eigenstate it collapsed into.
>>
>Wavefunction collapse is an arrtifact of the Copenhagen interpretation.
>It works when doing calculations but, as Schrodinger's cat shows, it
>is not really sound.
>
>Decoherence is an approach that suggets the wavefunction doesn't
>actually collapse, it's just that for classical systems all trace of
>interfeerence is washed out by interactions with the rest
>of the universe.
So is there any reason anymore not to believe in the Many-Worlds
Hypothesis? Occam's Razor and all that...
Brad DeLong
