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      CommentAuthoraber0der
    • CommentTimeFeb 21st 2021
     
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      CommentAuthoraber0der
    • CommentTimeFeb 21st 2021
     
    Clown seeding is much far more. The worst.
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      CommentAuthoraber0der
    • CommentTimeFeb 27th 2021
     
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      CommentAuthoraber0der
    • CommentTimeFeb 27th 2021
     
    Fräulein Frau Hossenfolder full of facts is deceiving you. Study it up in the Bible.
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      CommentAuthoraber0der
    • CommentTimeFeb 27th 2021
     
    You're Sabine-fed with opinions about facts.
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      CommentAuthoraber0der
    • CommentTimeFeb 27th 2021
     
    Wake up. Smell the coffin.
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      CommentAuthoraber0der
    • CommentTimeFeb 27th 2021
     
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      CommentAuthorpcstru
    • CommentTimeFeb 27th 2021
     
    I'm beginning to suspect she is an AI presentation tool that just provide with text...

    Actually - people would buy that.
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      CommentAuthorAngus
    • CommentTimeFeb 27th 2021
     
    Posted By: pcstruI'm beginning to suspect she is an AI presentation tool that just provide with text...

    Actually - people would buy that.


    And music. Very advanced AI.
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      CommentAuthoraber0der
    • CommentTimeFeb 27th 2021 edited
     
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      CommentAuthoraber0der
    • CommentTimeMar 21st 2021 edited
     
    Oh je, oh je.
    Frau Hossenfelder has 'thoughts' again.

    https://youtu.be/-xMRoICR9SE
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      CommentAuthoraber0der
    • CommentTimeMar 21st 2021
     
    (It is no coincidence that keyboards have so many F!-keys)
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      CommentAuthoraber0der
    • CommentTimeMar 27th 2021
     
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      CommentAuthorAngus
    • CommentTimeMar 27th 2021 edited
     
    Aha!
    Finally I have caught Sabine in an error!

    It is quite true that the sort of 3-D pictures you see on greeting cards and book covers are not holograms. They capture some discrete values of lateral parallax only and use a lensing method. They are called parallax panoramagrams.

    But the little shiny item on your credit card or plastic money is different. It is truly a hologram of a particularly ingenious type (called the "rainbow hologram") invented by a guy called Steve Benton, alas now dead. The two unique things* about rainbow holograms are that they can be reconstructed in white light, and they can be encoded by variations in the height of a surface, hence by embossing them on plastic. (Or even chocolate, as was suggested in one of the early papers.)

    But other than that I am heartened to learn that since our universe doesn't have an anti-deSitter boundary the whole "universe is a hologram" business is just mathematical wanking.

    *Actually not quite unique but certainly unique in combination.
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      CommentAuthoraber0der
    • CommentTimeMar 27th 2021
     
    Did you tell her?
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      CommentAuthoroak
    • CommentTimeMar 27th 2021
     
    Did you flame her?
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      CommentAuthoraber0der
    • CommentTimeMar 27th 2021 edited
     
    It is time! Someone has to do something, Sabienchen's wrongdoing can't stand. Slash/smite/burn!

    ETA:
    I had to make this private because possible legal repercussions (or the fear thereof) limit my right to slander and verbally abuse my co-citizens.
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      CommentAuthorAngus
    • CommentTimeMar 27th 2021
     
    Posted By: oakDid you flame her?


    No no. I will keep it to myself to help get over my feeling of physics inadequacy.
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      CommentAuthoroak
    • CommentTimeMar 27th 2021
     
    That's very thoughtful of you.
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      CommentAuthorAngus
    • CommentTimeMar 27th 2021
     
    I always think of myself.