B Does the future affect the past in a quantum world?

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I saw about this in a youtube video that the future affects the past in the quantum world.
Is this true?
 
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Might be helpful if you gave us a link to the Youtube video you watched.
 
It was in my native language hindi. So you won't understand it.
 
He said that until we see something that thing is in wave form. But if we see something than that is in its normal form. So he gave the example by saying that if a gun fires a bullet through a slit. And you are on the other side of the slit and our eyes are closed and when the bullet reaches the other side of the slit you open your eyes. At that timeif you open your eyes. The wave of the bullet will go back to the moment when the gun fired. And this time the wave will be ready for you. When you open your eyes.
 
Froskersss said:
I saw about this in a youtube video that the future affects the past in the quantum world.

Is this true?
No. That the future does not affect the past is called causality.

However, the future may reveal more information about the past, thus as when we learn about new archeological findings. But this doesn't conflict with causality - only our knowledge is affected.

Some people confuse knowledge and fact in the quantum world, and then conclude wrongly that there the future affects the past.
 
Froskersss said:
It was in my native language hindi. So you won't understand it.

We can't discuss a reference we can't see.

The short answer to your question is no. Any longer discussion would need a reference we can actually use as a basis for discussion.

Thread closed.
 

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