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DavidDeutschOxf's profile
David Deutsch
David Deutsch
David Deutsch
@DavidDeutschOxf

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David Deutsch

@DavidDeutschOxf

Physicist. Author of The Fabric of Reality and The Beginning of Infinity

Oxford, UK
daviddeutsch.org.uk
Joined September 2012

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    David Deutsch‏ @DavidDeutschOxf Jan 18

    Non-locality in physics is a myth. Violating Bell's inequalities does not make a theory non-local:https://www.mdpi.com/1099-4300/21/1/87/htm …

    4:51 AM - 18 Jan 2019
    • 22 Retweets
    • 62 Likes
    • Luis Lopez Brett Hall Zadig888 MDPI Books Alexey Guzey patricia My name is.... Edgar Paul Portesi  ن​
    6 replies 22 retweets 62 likes
      1. New conversation
      2. Alexander Knochel‏ @Quantensalat Jan 18
        Replying to @DavidDeutschOxf

        are you alluding to everett as a "loophole" to avoid nonlocality?

        2 replies 0 retweets 0 likes
      3. David Deutsch‏ @DavidDeutschOxf Jan 18
        Replying to @Quantensalat

        These are theorems. They don't use, or have, loopholes. But yes, this is one of several reasons why quantum theory just is 'Everettian quantum theory'.

        2 replies 1 retweet 8 likes
      4. Paul Snively‏ @paul_snively Jan 18
        Replying to @DavidDeutschOxf @Quantensalat

        Would you say, per David Wallace, QM doesn’t have a measurement problem, given “QM” == Everett?

        1 reply 0 retweets 2 likes
      5. David Deutsch‏ @DavidDeutschOxf Jan 18
        Replying to @paul_snively @Quantensalat

        Yes.

        1 reply 1 retweet 6 likes
      6. Paul Snively‏ @paul_snively Jan 18
        Replying to @DavidDeutschOxf @Quantensalat

        Thanks!

        0 replies 0 retweets 2 likes
      7. End of conversation
      1. David Deutsch‏ @DavidDeutschOxf Jan 18

        Their theorem applies to a vast range of possible theories that violate Bell's inequalities by more than quantum theory does. Also, startlingly, it applies to ALL theories that forbid superluminal signalling.

        1 reply 1 retweet 4 likes
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      1. KingPin‏ @Twitkingpin Jan 18
        Replying to @DavidDeutschOxf

        “All politics is local” Too bad politics has infected physics 😫

        0 replies 0 retweets 1 like
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      1. New conversation
      2. David Kedmey‏ @DKedmey Jan 18
        Replying to @DavidDeutschOxf

        Inspired by this, I took a 2nd shot at understanding "Info Flow in Entangled Quantum Systems" https://arxiv.org/pdf/quant-ph/9906007.pdf … But...the Heisenberg picture has me stumped. Anyone know of a video that gives a visually intuitive explanation of it? @Crit_Rat @dela3499 @MatjazLeonardispic.twitter.com/8JJJ7wOhGc

        1 reply 0 retweets 1 like
      3. 1 more reply
      1. El Percepto‏ @el_percepto Jan 18
        Replying to @DavidDeutschOxf

        David, does long-distance quantum non-local interaction lead you to give consideration to panphyscism type theories?

        0 replies 0 retweets 0 likes
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      1. Gregory Kovacs‏ @GMNat0127 Jan 18
        Replying to @DavidDeutschOxf

        Woot.

        0 replies 0 retweets 0 likes
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