Hello Pragmatist!
The issue of debate is UNKNOWN.
Great. Then let's move on.
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Originally posted by JustGeoff
And I already asked you where you draw the line between microscopic and macroscopic. You failed to answer the question and told me that I wouldn't understand it anyway. So I left it at that.
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I don't recall you asking me that. But the answer is complex. Look up Bohr's complementarity principle and you will understand. You can't reasonably expect me to explain the whole of QM AND conventional physics to you!
Well, rather like reverse causality I was under the impression that the answer to this question is also UNKNOWN. There are theories, but nobody seems very confident that they are right. So you don't have to explain it, but if the answer isn't known then that'll be just great.
"The guy taking the measurements" hardly qualifies as a "definition"!
I agree. But you must realise that plenty came before you and tried to claim it did.
And I explicitly said that *I* neither needed nor wanted a "definition". I can't get clearer than that. If you want to simply score cheap points by deliberately misrepresenting what I said then you are not worth debating with.
I'm not trying to score cheap points by deliberately misrepresenting you. That's what Claus does, and it irritates the hell out of me. So sorry if I did.
If you don't want or need a definition of "observer" then that leaves plenty of doors open for people to come along and come to their own conclusions about what an observer might be. I realise you don't want to talk about metaphysics, but do you think that everyone else should stop talking about it to?
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Originally posted by JustGeoff
No doubt you think I am.
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I didn't initially, but the way you keep misrepresenting things leads me to believe you are true believer who is desperate to validate an unreasonable view by any means fair or foul. Which is not meant as an insult, but it is a big disappointment to me.
A believer in
what?
All I believe in is my own eyes. I am not defending any religions here. I believe that what happened to me really happened. That isn't the same as believing in a religion and trying to find evidence to back it up.
It has everything to do with the idea that you can simply substitute philosophical imaginings for known physical events. And it once again highlights the fallacy I have repeatedly mentioned. I have a cookie tin and I don't know what is inside. I won't know what is inside until I open it.
From my POV, you have already left out a possibility. That possibility is that the contents of the cookie tin simply aren't defined until you open it. I am not substituting philosophical imaginings for real events
because there aren't any real events to substitute. All there are is "assumed events". From the POV of an idealist, you are trying to solve a non-existent problem.
Sorry if that sounds like sophism, but what can I do? For the idealist, it simply doesn't matter what's in a closed cookie tin unless whatever is inside it has a mind. So what does an idealist evaluating QM make of your descriptions/questions? Half the time he can't make anything of them at all, unless he temporarily adopts materialism. If he temporarily adopts materialism he then ends up wondering what "smeared particles" are. As far as I am concerned, they just
aren't.
It was only ever THEORETICALLY possible whilst the true situation was unknown. I recognise that THEORETICALLY possible is just another way of saying it was possible that it was possible. NEVER that it "WAS possible". "Possible in theory" does not imply "possible in practice". Last time I explain this.
So it is possible that reverse causality is possible, but reverse causality isn't
actually possible!? Yeah!
I'm sure I'm not the only one struggling with this.
No. Why should I substitute theoretical philosophy for known fact?
It was PRECISELY that attitude that Schrodinger was arguing AGAINST. Look up his argument with Heisenberg over the path of an electron. He did NOT support the view you claim he did.
I am not asking you to substitute theoretical philosophy for a known fact, because you don't know the fact you think you know. You only think you know it because you have already presumed materialism is true, which is in itself a theoretical philosophical position. The problem is that the position you are describing as scientific fact is only actually true if your assumptions are true, and in this case I believe your assumption is false. I think it is very difficult to provide an opinion on QM and totally avoid implying metaphysical assumptions.
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Originally posted by JustGeoff
The cat HAS to be, because even if you are an idealist a cat is a conscious observer. But if there is no cat, then the contents of the box DO NOT "have" to be in one state or another, and neither do they have to be "smeared out". Why do unobserved physical things have to have a definate state if you aren't a physicalist?
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Now you are just being obtuse.
I'm not! It's a genuine question. I'm not trying to be sophistic. This is not cheap points. If you are an idealist, what on earth is the need for a "smeared out particle" or a probability? Unobserved particles are simply irrelevant.
You are misrepresenting Schrodinger as you have misrepresented me on here. There is no issue with the "consciousness" of the cat and there never has been.
Depends on your metaphysics, doesn't it?
Do the cat experiment and leave the (airtight) box sealed for 50 years. Do you HONESTLY believe there is the slightest possibility the cat will come out alive?
Now YOU are being obtuse!
Of course not.
On the other hand we can simply leave all of these things just as they are and simply ASSUME that there could not possibly have been one single quantum interaction or ANY physical process whatsoever in the box during the whole time.....
Sorry, but my problem is once again that I am looking at the science with the assumption of materialism switched to idealism because of the whole unmentionable "observer" business. So, from that POV, I do not have to assume that there are any physical processes going on in a sealed box. Instead, once the contents of the box is observed, an outcome is observed. This is in itself a sort of reverse causality, but maybe not how Jim knows it. It's like viewing the material world as being made of information, but the calculations being done to define what happened in the box don't occur until the observation does, and then they can happen "backwards", provided they a consistent with the last observed state. Maybe reverse causality, but it might not be what YOU mean by reverse causality. I don't agree with you that the outcome is driven solely by physical law. I think physical law provides a set of possible outcomes and metaphysical law decides the specific outcome.
, but it was just some abstract quantity we choose to call "consciousness" that we can't even clearly DEFINE let alone detect or measure which did the trick instead!
PATENTLY ridiculous!
You might not be able to define it. Science might not be able to define. Some of those metaphysicians might be able to, but they aren't allowed in this thread!
