Comment by blibble

7 days ago

it's still "just" a theory, in the same way gravitation is "just" a theory

and always will be until it's dis-proven, or someone invents a time machine and we can go and see it for ourselves

until it's dis-proven, or until it is proven.

we have plenty of evidence of the movement of plates. we know where subduction zones are. what does it take to prove a theory if not repeatable tests/observations?

  • the large body of corroborating evidence (and ability to be dis-proven) is what makes it a theory

    but we can't "prove" plate tectonics, because we can't directly observe what's going on the earth's crust over a period of millions of years

    in scientific nomenclature, a theory is a very robust thing indeed

    vs. the vernacular, where it isn't, e.g. "I have a theory that my cat vomits behind the couch after I give him ice-cream"

    • > we can't directly observe what's going on the earth's crust over a period of millions of years

      Depends what you mean by “observe”. The parallel lines of reversing magnetic polarity that are embedded in the sea floor on either side of the great rifts are observations that demand explanation.

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