It seems to me that your views of how people think of the observers roles are not how I see them, so first some notes on what you wrote...
QuantumClue said:
No longer can we say objects do not exist until observation
I defend the observer view but would not accept this statement.
Btw - what objects? the whole point of science and physics is to try to describe and utilise nature. Until we know, all our environment is simply a black box. So I ask again in this light, what objects are you talking about?
Lacking evidence of a certain proposition beeing true, doesn't men it's false.
Without evidence, the observer does not deny possibilities, but without evidence the rational action of the obsever is independent of it. Nothing in your examples or links below contradicts this. On the contrary this ensures locality.
So I demand that whatever you call objects, must be inferred strictly in terms of interaction properties of the black box.
QuantumClue said:
2) No longer can we state that these wave functions are ethereal. These probabilities do in fact exist physically in the world. [/b]
I never had the view that they are ethereal. They are however not like physical substances.
The information, implicit in the state vector, is in CI encoded in the ENVIRONMENT or the state of the measurement device. This is very real. There is nothing ethereal about this IMHO.
Here a holographic situation appears; as I see it the "statevector of system A; relative system B" is NOT a physical property of system A, but a physical property of system B. But of course the physical property of B, is the result of the interaction history with A (or preparation of experiment), so it's a kidn of relation of almost holographic nature.
QuantumClue said:
The article I linked to suggests that it is physical, which is actually the first blow to Copenhagen simply because:
...
If probabilities do not exist physically then Copenhagen is not correct in saying that things are not real until they are observed...
First, I'm not defending classical CI. This is obviously incomplete as it presumes a classical observer.
I'm defening the observer perspective (the heart of CI) but dropping the classical observer.
That link I does't blow anything as I see it.
QuantumClue said:
As I stated, it seems that reality can quite easily exist, and have real observable effects without the special aid of any human observer. Afterall, the universe has existed long before any humans arrived on the scene.
An observer means any system encoding an information state, and that interacts. It hasnothing to do with humans.
No sensible physicist would claim that thus has anything to do with humans. I've started to think it's an distorted description made on purpose by people who don't like the observer perspective.
In CI the actual observer is the measurement device. The process whereby another classical system (a human or a tape recorder) simply copies the classical state of the indicator on the measuremnet devices is clearly trivial.
It contains no interesting physics. So it should be without doubt that the operator in the lab has nothing to do in this analysis.
I just think it's irrational to talk about "observable effects" without acknowledge the central role of an observer. (again, no need to confused this with the human operator of a lab).
I'm not sure if your objection is to the HUMAN observer specifically, or just OBSERVING system generally?
Btw, it's not possible to make an observation without distoring the system. The so called weak measurements are nevertheless a measurement. An observation is synonmous with interaction, which again means to note how the systems RESPONDS to perturbation. The weakly coupled measurements may be realized in various ways but there is no way to escape this. Weakly coupled situations can also be realized with extended interaciton times, so that the systems equilibrates with a local environment which is then probed, for minimal coupling of original system. But there is obviously still a coupling nevertheless, and the longer chain in between the larger is the probability of distorting the original information, making it less reliable.
/Fredrik