> I'm still not sure if it's just claiming that the "hallucinated" Hilbert spaces in a measurement are actualy real copies of the "universe". I'm not sure what

> I'm still not sure if it's just claiming that the "hallucinated" Hilbert spaces in a measurement are actualy real copies of the "universe". I'm not sure what you mean by "'hallucinated' Hilbert spaces", but MWI is just the combination of the claims that - The wavefunction is a (the) real physical object - The Schrodinger equation always holds - The Born rule is correct (though there's some hope this might be derivable from QM) The "worlds" are then a statmech phenomenon.