On the other hand, he must make sure that the splitting of the worlds occurs as soon as decoherence is over. But the “moment” when decoherence is over isn’t sharply defined. Decoherence is never “absolute”. Decoherence is a continuous process that becomes “almost totally complete” after a certain time scale but it is never complete.

— Hugh Everett’s many worlds interpretation of QM

— Lubos Motl

2013.01.22 Tuesday ACHK