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Is the big bang theory a theory?

Answer:

Yes, that's why it's called a theory.

It's important to realize, however, that science uses the term "theory" in a different way than the general public. The popular meaning of "theory" is akin to "wild guess", while in science a theory is a posited explanation that is testable, backed by evidence, and predictive.

It's also important to realize that "big bang theory" does not purport to explain, in Alan Guth's words, "what banged, what happened before it banged, or what caused it to bang". It is best considered as a theory that, given the observational evidence that a bang apparently occurred, how do we get from the initial conditions implied by that bang to the current state of the Universe today?

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First answer by Cosmospup. Last edit by Nafisahmed. Contributor trust: 0 [recommend contributor ]. Question popularity: 2 [recommend question].

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