If something cannot be observed by definition, does it exist ?

lol no, the unobservable thing I mean is the universe

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There is no outside of the universe since the universe is all there is.

 

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I don't know, I observe the Universe all the time. Well, bits of it, anyway.

And BTW, thanks for the goose chase.

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I actually spent time thinking on this.

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T1G! out.

 

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Semanitics

What is meant by "observe" and "exist"?

The act of observing implies (by definition) a causal relationship, in other words when something is observed then that "something" has caused "something else".

Certainly, one valid definition of "to exist" is "can be involved in a causal relationship". If you follow these definitions then if you were to say that something can never be observed then you are (by definition) saying that it cannot be involved in a causal relationship and that would imply (again by definition) that it does not exist.

Other semantically different but still reasonable definitions of "observe" and "exist" can lead to other conclusions.

What this goes to show is that the answer to this question does not lie in quantum mechanics or other physical theories but simply in a careful analysis of semantics.

 

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