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Technology: More quantum weirdness.

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    •  
      CommentAuthorTrim
    • CommentTimeOct 4th 2020
     
    Quantum entanglement realized between distant large objects.

    https://revolution-green.com/quantum-entanglement-realized-distant-large-objects/
  2.  
    Realised.

    At its most pernicious between mothers-in-law.
    •  
      CommentAuthorgoatcheez
    • CommentTimeOct 4th 2020
     
    •  
      CommentAuthorAngus
    • CommentTimeOct 4th 2020
     
    It can't.
    •  
      CommentAuthorTrim
    • CommentTimeOct 4th 2020 edited
     
    You have a bomb on Mars that can be exploded by six different entangled quantum items switching there entanglements within one micro second, Mars is twenty light minutes away you detonate the bomb by changing your entangled items by pressing a button.

    Twenty minutes later you see the flash, had you sent a radio signal you would have seen the flash in forty minutes.

    A stellar probe is ten light years away, it detects intelligent life so it sends a coded message by switching entanglements at a specific time, like the Romans used to use thousands of years ago.

    So you know that information tens years before a radio beam could have told you.

    And yet information can't travel faster than light???
    •  
      CommentAuthorTrim
    • CommentTimeOct 4th 2020
     
    The Romans used to use flags in the daytime and lights (fire) at night.

    Different forts in sight of each other could exchange urgent messages by using the time difference between signals, a small time gap might signal, help we are under attack, a longer one might mean have seen enemy heading in your direction, a longer one might mean, Centurion is on his way to you for a surprise expection.

    It was limited to about ten messages
    •  
      CommentAuthorAngus
    • CommentTimeOct 4th 2020
     
    Posted By: Trimchanging your entangled items by pressing a button.


    That's not how it goes.
    •  
      CommentAuthorgoatcheez
    • CommentTimeOct 4th 2020
     
    I told you not to eat the amanita muscaria.
    •  
      CommentAuthorAngus
    • CommentTimeOct 4th 2020
     
    I never eat mushrooms unless they came from the grocery store. I find reality to be quite bizarre enough for my entertainment.
    •  
      CommentAuthorgoatcheez
    • CommentTimeOct 4th 2020
     
    Good. That was @Trim anyway.
    •  
      CommentAuthorTrim
    • CommentTimeOct 4th 2020
     
    Posted By: Angus
    Posted By: Trimchanging your entangled items by pressing a button.


    That's not how it goes.


    So how do change an entangled state?

    Positive becomes negative and vice versa, if you can change one you can change ten, how ever far away they are.
    • CommentAuthorAsterix
    • CommentTimeOct 4th 2020
     
    Posted By: AngusI never eat mushrooms unless they came from the grocery store. I find reality to be quite bizarre enough for my entertainment.


    There are a few wild mushrooms that I eat (when we're not in a drought). They're distinctive and it's easy to verify via spore prints. Chanterelles and "fried chicken mushrooms" are particularly good eating.
    •  
      CommentAuthorAngus
    • CommentTimeOct 4th 2020
     
    Posted By: TrimSo how do change an entangled state?


    Decoherence would do it. But you can't tell it has been changed unless you have information from the other half, and that information travels at the usual speed.
    •  
      CommentAuthorTrim
    • CommentTimeOct 4th 2020
     
    I thought they were always opposite to each other?

    So if one switches the other one does as well.
    •  
      CommentAuthorAngus
    • CommentTimeOct 4th 2020
     
    The only way to tell if two things are always in opposite states is to look at both of them. Absent any way to know if two separated quantum objects are (or remain) entangled, how are you going to use their possible entanglement to transmit anything?
    •  
      CommentAuthorTrim
    • CommentTimeOct 4th 2020 edited
     
    Assumption.

    Enough particles sending the same code would increase the accuracy of the assumption.

    If you have 50/50 that the cat is dead the poor cat only has a 50% chance of being alive but if you set it up so that the cats odds are a million to one that it will be alive you can assume that it is.
    •  
      CommentAuthorAngus
    • CommentTimeOct 4th 2020
     
    Indeed. But no faster than light.
    •  
      CommentAuthorTrim
    • CommentTimeOct 4th 2020
     
    Thought or assumption can beat light in a way, knowing that a bomb would explode with a chance of a million to one in ten years and two days you can assume after ten years you should leave the area, pronto.
    •  
      CommentAuthorAngus
    • CommentTimeOct 4th 2020 edited
     
    A guess, assumption, wish, fear or quiet longing is not information. They can go as fast as you want. A probability estimate about something is information and goes by parcel post.
    •  
      CommentAuthorgoatcheez
    • CommentTimeOct 8th 2020
     

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