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The Difficult Birth of the "Many Worlds" Interpretation of Quantum Mechanics
Scientific American ^ | 3/21/18 | Adam Becker

Posted on 03/26/2018 9:56:53 AM PDT by LibWhacker

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To: DannyTN

The Big Bang Theory - Sheldon Doesn’t Dance
https://www.youtube.com/watch?v=XQ7Tj-Hxx1o
In a few worlds he is a clown made of candy.


21 posted on 03/26/2018 8:58:52 PM PDT by minnesota_bound
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To: 6SJ7; AdmSmith; AFPhys; Arkinsaw; allmost; aristotleman; autumnraine; bajabaja; ...
Thanks LibWhacker.

· String Theory Ping List ·
"The truth is usually just an excuse for a lack of imagination." -- Elim Garak

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22 posted on 03/26/2018 10:15:50 PM PDT by SunkenCiv (www.tapatalk.com/groups/godsgravesglyphs/, forum.darwincentral.org, www.gopbriefingroom.com)
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To: LibWhacker

For a period of time in the 70s my brother was the closest working associate of Hugh Everett and has many stories to tell about him.


23 posted on 03/26/2018 10:24:53 PM PDT by steve86 (Prophecies of Maelmhaedhoc O'Morgair (Latin form: Malachy))
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To: steve86

The 2008 biographic article:

https://www.scientificamerican.com/article/hugh-everett-biography/


24 posted on 03/26/2018 10:38:29 PM PDT by steve86 (Prophecies of Maelmhaedhoc O'Morgair (Latin form: Malachy))
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To: Reily

The problem with the pure math modelling going on with things like the mutliverse and string theory is that the theories might begin with math for which there is some empirical basis, and then not just the formula but factors plugged into the formula are invented to make the model produce what the theorists has already imagined. Its as if you could invent factors and math for them, what you have invented MUST be real, somewhere. It’s not science, it’s science fiction.


25 posted on 03/27/2018 4:44:41 AM PDT by Wuli
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To: LibWhacker

The work of DeWitt, Deutsch, and others led the many-worlds interpretation to become much more popular over the ensuing decades. But Everett didn’t live to see the many-worlds interpretation achieve its current status as the most prominent rival to the Copenhagen interpretation. He died of a massive heart attack in 1982, at the age of 51.

...

Everett used Many Worlds as an excuse to live a gluttonous life and disregard his health. He figure he’d always be alive in one of the worlds.


26 posted on 03/27/2018 4:54:17 AM PDT by Moonman62 (Make America Great Again!)
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To: LibWhacker

The many-worlds interpretation hit a roadblock almost immediately in the person of Everett’s PhD advisor at Princeton, the eminent physicist John Wheeler. Wheeler was a physicist’s physicist; he wasn’t terribly well known outside of the field, but he knew absolutely everyone important within it. He was a protégé of Bohr, and had also been close with Einstein. Fifteen years before Everett showed up at his door, Wheeler had supervised the PhD of a young Richard Feynman; he would later go on to supervise the PhDs of dozens more renowned physicists (including Kip Thorne, one of the winners of last year’s Nobel Prize in Physics).

...

Wheeler may be one of the greatest physicists ever. He came up with his own crazy idea, one so nuts that his student Feynman had to call it too outlandish to be true.


27 posted on 03/27/2018 4:58:32 AM PDT by Moonman62 (Make America Great Again!)
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To: Wuli

It’s not science, it’s science fiction.

...

It’s science in the early stage of formation. And it seems to be stuck there.


28 posted on 03/27/2018 5:00:29 AM PDT by Moonman62 (Make America Great Again!)
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To: Reily

Experimental physics catches up and shows the math intuition was sound (antiparticles, neutrino, etc). Unfortunately nowadays both cosmology & particle physics are at a point where experiments are either very hard & super expensive or (mostly!) there’s no know way to do them.

...

It does seem to have changed. For relativity and quantum mechanics it was the strange experimental results that led the way.


29 posted on 03/27/2018 5:03:35 AM PDT by Moonman62 (Make America Great Again!)
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To: Moonman62

Philanthropists can fund it, taxpayers should not.


30 posted on 03/27/2018 5:34:01 AM PDT by Wuli
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To: LibWhacker
To solve the problem of superposition, Everett proposed something truly radical, seemingly more appropriate for the pulp sci-fi novels he read in his spare time: he said that quantum physics actually implied an infinite number of near-identical parallel universes, continually splitting off from each other whenever a quantum experiment was performed. This bizarre idea that Everett found lurking in the mathematics of quantum physics came to be known as the “many-worlds” interpretation.

Think of space-time as a solid - Astronauts moving in "time" fast enough to break the bonds of illusion...

Astronaut's gene expression no longer same as his identical twin, NASA finds

https://www.cnn.com/2018/03/14/health/scott-kelly-dna-nasa-twins-study/index.html

31 posted on 03/27/2018 9:06:51 AM PDT by GOPJ (Whores who serviced members of "elite' Washington MSM - We pay cash for dirt...)
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To: Moonman62

Of course! I wondered why he (probably) let himself go like that.


32 posted on 03/27/2018 1:38:52 PM PDT by LibWhacker
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To: Moonman62

Okay, gotta ask, which idea was as crazy (not that I don’t believe you, but I love crazy ideas).


33 posted on 03/27/2018 1:45:47 PM PDT by LibWhacker
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To: LibWhacker

I’m glad somebody finally asked.

The idea was that all the electrons and positrons in the Universe are only one particle, since the positron is the same as an electron going backwards in time.

https://en.wikipedia.org/wiki/One-electron_universe

I like Feynman’s quote in the article from his Nobel speech:

I did not take the idea that all the electrons were the same one from [Wheeler] as seriously as I took the observation that positrons could simply be represented as electrons going from the future to the past in a back section of their world lines. That, I stole![


34 posted on 03/27/2018 1:53:00 PM PDT by Moonman62 (Make America Great Again!)
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To: Moonman62

Is this the single electron idea?


35 posted on 03/27/2018 2:04:34 PM PDT by Reily
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To: Reily

See my post just above yours.


36 posted on 03/27/2018 2:51:22 PM PDT by Moonman62 (Make America Great Again!)
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To: tbw2

Interesting link.


37 posted on 03/27/2018 2:51:27 PM PDT by samtheman (LetÂ’s elect as many Republicans as possible in 2018)
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To: Moonman62

That’s a new one to me, thx!


38 posted on 03/27/2018 3:16:33 PM PDT by LibWhacker
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To: LibWhacker

Wheeler also developed the participatory anthropic principle, another outlandish idea that I find intriguing.

http://www.dummies.com/education/science/physics/string-theory-the-participatory-anthropic-principle/


39 posted on 03/28/2018 8:13:51 AM PDT by Moonman62 (Make America Great Again!)
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To: Moonman62

Here’s an excellent article about Wheeler. It includes his regret that he didn’t push for the development of the atomic bomb sooner, which could have saved millions of lives, including the life of his brother.

http://nautil.us/issue/9/time/haunted-by-his-brother-he-revolutionized-physics


40 posted on 03/28/2018 8:32:39 AM PDT by Moonman62 (Make America Great Again!)
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