Einstein & Bohr Debate: Epistemological Paradox

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Discussion Overview

The discussion revolves around the epistemological paradox in the debate between Einstein and Bohr regarding quantum mechanics. Participants explore the philosophical implications of their differing views on the nature of reality and knowledge in the context of quantum physics, particularly focusing on the completeness of quantum mechanics and the implications of the Heisenberg uncertainty principle.

Discussion Character

  • Debate/contested
  • Philosophical exploration
  • Technical explanation

Main Points Raised

  • Some participants note that Bohr's Copenhagen Interpretation suggests that certain aspects of physical reality are unknowable, while Einstein argued for a deterministic view, famously stating, "God does not play dice with the universe."
  • Others highlight that the debate is fundamentally philosophical, questioning whether physical behavior is "knowable" and the implications of this for quantum mechanics.
  • Some participants reference the EPR paper, which posits that if certain assumptions about reality and entanglement hold, then predetermined values for non-commuting observables must exist, challenging the completeness of quantum mechanics.
  • There are discussions about the clarity and interpretation of Bohr's arguments, with some suggesting that his communication style has led to various interpretations of his stance on quantum mechanics.
  • Participants mention that the debate has implications for the development of quantum mechanics and may reflect deeper philosophical questions about the nature of reality.
  • Some express the view that both Einstein and Bohr may have been incorrect in their conclusions, suggesting that quantum mechanics might be incomplete, particularly in light of ongoing developments in theoretical physics.

Areas of Agreement / Disagreement

Participants generally agree that the debate between Einstein and Bohr encompasses both scientific and philosophical dimensions. However, there is no consensus on the validity of their respective positions or the implications of their arguments, indicating multiple competing views remain.

Contextual Notes

Participants acknowledge that the discussion involves complex interpretations of quantum mechanics and the philosophical implications of measurement and reality, with references to historical papers that may not be universally agreed upon in their interpretations.

Who May Find This Useful

This discussion may be of interest to those studying the philosophical foundations of quantum mechanics, the historical context of the Einstein-Bohr debate, or the implications of quantum theory on our understanding of reality.

  • #61
Vividly said:
My question is, what was their “stand” in regards to this epistimological paradox?

To answer the question head-on, the epistemological difference between Einstein and Bohr is Einstein was a realist. He believed in an objective world out there independent of anyone’s beliefs, linguistic practices, conceptual schemes, and so on. Within that view of the world, there are many different nuanced positions. Einstein was also an epistemological opportunist; he simply took the one that served his purpose the best. The point to take away, though, is he was a realist. Bohr was an instrumentalist believing science reveals nothing except what is observable. Science is just a tool allowing the prediction of observations but does not reveal any hidden aspects of nature that may explain those laws.

Feynman, too was an opportunist - believing it to be just one 'trick' that scientists can try to unlock natures secrets. He was quite anti-philosophy - which is rather strange because it is philosophy itself.

In modern times I think most (but not all - see the writings of Penrose, for example) scientists are really neither; they are like Stephen Hawking believing in some form of Model-dependent realism:
https://en.wikipedia.org/wiki/Model-dependent_realism

I, too, am in that camp, although I was once in Prenose's camp. But like Feynman, as far as nuances go, I am an opportunist.

Thanks
Bill
 
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  • #62
It's ironic that Einstein insisted on a "constructive" account of entanglement when he could have produced a "principle" account using his relativity principle. He gave up on "constructive efforts" for explaining time dilation and length contraction, so I wonder why he never considered doing likewise for entanglement. I read some quotes indicating that perhaps he was not really happy with special relativity in the absence of a constructive counterpart, so maybe he didn't even want to go that way with EPR? https://sciencex.com/news/2020-10-einstein-opportunity-spooky-actions-distance.html
 
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  • #63
bhobba said:
Einstein was also an epistemological opportunist; he simply took the one that served his purpose the best. The point to take away, though, is he was a realist. ...

Feynman, too was an opportunist - believing it to be just one 'trick' that scientists can try to unlock natures secrets. He was quite anti-philosophy - which is rather strange because it is philosophy itself.
Feynman is hard to categorize. He wasn't 'anti-philosophy': he was just opposed to a non-scientific philosophy posing as science (which to him was like people arguing over whether an interpretation of a Rorschach diagram was correct). His entire career was an attempt to explain nature so his motivation in that sense was a philosophical one. He was fascinated by the fact that nature seemed be explainable in different ways without contradiction. He remarked on this in his Nobel lecture:
"I would like to interrupt here to make a remark. The fact that
electrodynamics can be written in so many ways - the differential
equations of Maxwell, various minimum principles with fields,
minimum principles without fields, all different kinds of ways, was
something I knew, but I have never understood. It always seems
odd to me that the fundamental laws of physics, when
discovered, can appear in so many different forms that are not
apparently identical at first, but, with a little mathematical
fiddling you can show the relationship. An example of that is the
Schrödinger equation and the Heisenberg formulation of quantum
mechanics. I don't know why this is - it remains a mystery, but it
was something I learned from experience. There is always
another way to say the same thing that doesn't look at all like the
way you said it before. I don't know what the reason for this is. I
think it is somehow a representation of the simplicity of nature. A
thing like the inverse square law is just right to be represented
by the solution of Poisson's equation, which, therefore, is a very
different way to say the same thing that doesn't look at all like
the way you said it before. I don't know what it means, that
nature chooses these curious forms, but maybe that is a way of
defining simplicity. Perhaps a thing is simple if you can describe it
fully in several different ways without immediately knowing that
you are describing the same thing."

AM
 
  • #64
bhobba said:
In modern times I think most (but not all - see the writings of Penrose, for example) scientists are really neither; they are like Stephen Hawking believing in some form of Model-dependent realism:
https://en.wikipedia.org/wiki/Model-dependent_realism

I, too, am in that camp, although I was once in Prenose's camp. But like Feynman, as far as nuances go, I am an opportunist.
What does Penrose believe that is different from most scientists?

("Prenose" means you were born before noses were invented...)
 
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