Dan Fabulich wrote:
> Moss is also right that this would not prove MWI, but as far as I know MWI
> is the most plausible alternative to Copenhagen, so it would firmly
> establish MWI as valid scientific theory, at the very least.
The most plausible alternative, imho, would be to assume that the wavefunction is not 'real' and is a product of limited knowledge. This, btw, is the Copenhagen interpretation, not many people actually believe in observer collapse. My own interpretation would be that although the wavefunction is a product of limited knowledge it is no less real than anything else. All physical theories are shaped by our limited knowledge.
Btw, Bryce DeWitt has a interesting review of _The Fabric of Reality_ at the following URL:
http://naturalscience.com/ns/books/book02.html
BM