Given that MWI uses the mathematical formalism equivalent to CI, they are equivalent in the only respect that counts. For example, neither provides any testable predictions re alternate universes, except that they are not observable. Of course, the MWI model tends to make people feel good about Quantum Mechanics, but that is a purely psychological effect.
CI has wave-form collapse. This isn’t used in the mathematical formalism because there’s no specific point at which it’s agreed to happen. It’s just assumed that it is when the system gets “macroscopic”.
They do show evidence of alternate universes, and they are not unobservable. For example, the double-slit experiment has two pasts. One for each slit.
Also, according to timeless physics, the past and future is just alternate universes. If you believe the past exists, and you accept the basic idea, you believe that alternate universes exist.
Given that MWI uses the mathematical formalism equivalent to CI, they are equivalent in the only respect that counts. For example, neither provides any testable predictions re alternate universes, except that they are not observable. Of course, the MWI model tends to make people feel good about Quantum Mechanics, but that is a purely psychological effect.
CI has wave-form collapse. This isn’t used in the mathematical formalism because there’s no specific point at which it’s agreed to happen. It’s just assumed that it is when the system gets “macroscopic”.
They do show evidence of alternate universes, and they are not unobservable. For example, the double-slit experiment has two pasts. One for each slit.
Also, according to timeless physics, the past and future is just alternate universes. If you believe the past exists, and you accept the basic idea, you believe that alternate universes exist.