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longship

(40,416 posts)
21. Okay, I'm with you on all except the "observer"
Mon Mar 19, 2012, 09:57 PM
Mar 2012

That's where many QM conversations go horribly wrong. The observer is just that, one who sees but has no effect. Looking only has an effect when the technology of your looking bridges the gap (make no mistake here, the gap is very real) between the quantum world and the macro world.

Putting it crudely, there is a qualitative difference between baseballs and electrons. Don't expect either to act like the other. No metaphor about quantum mechanics prepares a physics student for the study of quantum mechanics.

Richard Feynman was correct when he said that anybody professing to understand quantum mechanics doesn't understand quantum mechanics. But that doesn't mean that we know nothing about quantum mechanics. After all, Feynman himself said that the accuracy of the the theory was such as measuring the distance from LA to NYC to the diameter of a single hair.

Yes, to a non-physicist QM is mysterious, and there are aspects of it that still puzzle all physicists. But that doesn't give just any wackaloon permission to make up shit like there's top-down causality. Just ain't there, so far as anybody knows.

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However, it would be a big mistake... longship Mar 2012 #1
Straight to the point tama Mar 2012 #3
Is coherence selected or a structural by-product? Jim__ Mar 2012 #4
Wider context tama Mar 2012 #8
I'm not sure why you would begin by looking at a wider context. Jim__ Mar 2012 #15
To begin with tama Mar 2012 #16
A couple of thoughts. Jim__ Mar 2012 #33
A clarification tama Mar 2012 #36
Lack of any supporting data longship Mar 2012 #5
The word "decoherence" tama Mar 2012 #6
This is complete and utter rubbish longship Mar 2012 #9
But, but... someone was wrong about something before... Silent3 Mar 2012 #11
I disagree tama Mar 2012 #13
Your endless devotion to vagueness is certainly amusing, however. Silent3 Mar 2012 #17
Why don't you even try? tama Mar 2012 #19
You seem to be getting different posters confused Silent3 Mar 2012 #20
Flattering ad hominem, thanks for that tama Mar 2012 #28
I have no problem with people trying to understand "quantum" Silent3 Mar 2012 #29
You are making up tama Mar 2012 #31
New Age? longship Mar 2012 #32
Pseudoskepticism tama Mar 2012 #45
Thank you. Thank you. And THANK YOU!!! nt Joseph8th Mar 2012 #40
Nice tama Mar 2012 #12
Sorry! Your post makes no physical sense longship Mar 2012 #18
First tama Mar 2012 #24
Tama, I'm with you longship Mar 2012 #30
Well that's clearly wrong bananas Mar 2012 #34
Wonderful take down longship Mar 2012 #35
Quantum cryptography, quantum teleportation, superconductors are some other examples bananas Mar 2012 #48
Please! It's bad enough to tarnish QM... Joseph8th Mar 2012 #41
Gödel tama Mar 2012 #43
Looking for a ToE ... Joseph8th Mar 2012 #46
Abstract tama Mar 2012 #47
Not sure why I'm bothering, but... Joseph8th Mar 2012 #49
Some good points tama Mar 2012 #50
Heheh... Cantor's Paradise... Joseph8th Mar 2012 #53
LOL - "mathematical theorems ... bear no relation to physics" bananas Mar 2012 #51
Math is not physics... Joseph8th Mar 2012 #52
Physics is NOT illogical or irrational... Joseph8th Mar 2012 #54
I didn't know there were Militant Holists, now... Joseph8th Mar 2012 #38
LOL tama Mar 2012 #39
OMG... Joseph8th Mar 2012 #42
Condencending tone tama Mar 2012 #44
Anybody tama Mar 2012 #7
Hmm. DeWitt. Interesting longship Mar 2012 #10
First tama Mar 2012 #14
Okay, I'm with you on all except the "observer" longship Mar 2012 #21
Well, I think there's more to the "observer" unless you're effectively redefining the term caraher Mar 2012 #22
Touché, Zurek is above my pay grade longship Mar 2012 #23
I do think we're broadly in agreement caraher Mar 2012 #26
Thanks tama Mar 2012 #27
See post 24 for answer to also this n/t tama Mar 2012 #25
Delayed choice experiment tama Mar 2012 #37
So Stuart Kaufmann is still working.. arendt Mar 2012 #2
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