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No phenomenon is a real phenomenon until it is an observed phenomenon.
John Archibald Wheeler
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Interpretation

What this quote means

Observation is crucial for defining and understanding phenomena in the universe.

This quote by John Archibald Wheeler emphasizes the fundamental role of observation in the realm of science and physics. It suggests that a phenomenon only gains significance and reality when it is observed, highlighting the interplay between measurement and existence in scientific inquiry. This reflects a philosophical understanding that our perceptions and interactions with the universe shape our knowledge of it.

Themes

ObservationPhenomenonScienceRealityExistence

In practice

Example use cases

In a lecture on quantum mechanics, one might point out this quote to illustrate the significance of measurement.

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Quote by John Archibald Wheeler | QuoteProject