If there are not multiple worlds, how else are we supposed to make sense of the randomness in quantum physics?
How are you then able to describe and work out the origins of randomness?
In Quantum Mechanics, there's a cloud of probability as to where a particle might be found (location).
When you measure it, you find it at a specific location, because of the decoherence.
Decoherence is when you/the measuring apparatus gets entangled with the particle, and if the spin is up, the apparatus will measure it spin up.
The probability for measuring spin up/down is given by the amplitude squared.
It's basically Pythagoras Theorem applied to Quantum Physics (probability of the location squared + probability of the momentum (velocity times mass) squared = amplitude squared).
Now, where does this probability come from?
What determines whether I'll end up seeing spin up/down, specific location or momentum by any given measurement?
There's only one solution, and that is to look at the wave function evolving according to the Schrödinger Equation, tellings us that the world will branch upon decoherence - which occurs all the time. When an atom decays, the world branches.
You can't talk to these other worlds. They are forever seperated.
It's like a waves out of phase with each other, there's no intereference pattern.
The Copenhagen Interpretation says we should treat the quantum physics seperately from the classical realm.
But that's a big mistake, because the classical realm is derived from the quantum realm.
Even though the Copenhagen Interpretation predicts accurately what the world would look like if it was true, the Everettian multiverse would look exactly the same.
03 Jan 2022, 3:20 pm
