Correct me if I am wrong, but MWI does have noticeable consequences, or at least implications: for example, interference at all length-scales and proper evaluation of the waveform equations implying the Born probabilities. Neither of these are implicit in the Copenhagen interpretation—in fact, the first is contradicted.
Correct me if I am wrong, but MWI does have noticeable consequences, or at least implications: for example, interference at all length-scales and proper evaluation of the waveform equations implying the Born probabilities. Neither of these are implicit in the Copenhagen interpretation—in fact, the first is contradicted.