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Can we know that something exists even if we can't explain or define it?
Can a person know that something like "free will" must exist even though an exact definition in words, using language, cannot be provided, and in the absence of a complete theory that ...
user66156
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What is it about the existence of some things that makes us right or wrong in describing their existence, while other things can change?
For example, if people used to believe the Earth was the center of the universe, and we discover it is not, we now say, "people used to falsely believe that the Earth was the center of the universe", ...
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