When asked ... [about] an underlying quantum world, Bohr would answer, 'There is no quantum world. There is only an abstract quantum physical description. It is wrong to think that the task of physics is to find out how nature is. Physics concerns what we can say about Nature.'
Everything we call real is made of things that cannot be regarded as real.
Interpretation
What this quote means
This quote suggests that what we consider to be real is ultimately composed of elements that are intangible or abstract.
Niels Bohr's quote probes the nature of reality, indicating that the physical world we perceive is constructed from fundamental particles and forces that defy our traditional understanding of 'realness'. It invites a philosophical contemplation on the nature of existence, pushing us to consider that reality is a complex interplay of the tangible and the intangible, and that our perceptions might be limited by our understanding of these underlying components.
Themes
In practice
Example use cases
In a lecture on the nature of reality, I cited Niels Bohr's quote to spark a discussion about perception.
More from Niels Bohr
All quotes βAn independant reality in the ordinary physical sense can neither be ascribed to the phenomenon nor to the agencies of observation.
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And anyone who thinks they can talk about quantum theory without feeling dizzy hasn't yet understood the first thing about it.
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