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I've read about quantum nonlocality and a little on Bell's Theorem, but there's something I don't quite understand.
So let's say two entangled particles are created and moved to either side of the universe. The idea is that you look at one and you immediately know the state of the other, and information about the other particle has travelled to you instantaneously.
Couldn't that just mean that the state of a particle contains more information that just that state? E.g. say you measure the state of one of the particles as being spin up. You could say that you instantaneously know the state of the other particle, but could it actually be that the state of the particle just tells you both things? If it's state up, the other just has to be down - you don't need instantaneous data transfer.
I'm guessing I'm mistaken somewhere here otherwise this would have been picked up some time ago.
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>>7778814
its just mathematical fairytale bullshit with no practical application whatsoever
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>>7778814
It's not defined before you measure it. But if you do measure it, it's instantaneously defined for both particles.
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For this to have meaning one needs to know the state of a lot of particles, thats a pretty big computer one would need.
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>>7778814
You're right, it's just that knowing the state of the far-away particle constitutes instantaneous data transfer.
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The classic, goofy analogy is that the entangled particles are like a pair of gloves. If the gloves are in separate boxes and you don't know what state each glove is in (i.e. whether it's the right glove or the left glove), you could carry them to opposite sides of the universe and 'measure' their state (i.e. open the box) and instantaneously know what state the other one is in as well. This isn't instant information transfer though, you're not sending any information across the universe. It's just instant access to knowledge, more like if you wrote a book and two people carried a copy to opposite sides of the universe and started reading.
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