Sorry Vuk, the discussion got into I.D. so fast I missed the earlier comment on the teacher's behavior. My bad.

Originally Posted by
Vuk
And yes, evolution IS a theory. You obviously do not know much about it. Ask any scientist, evolution has not YET become a law, but is still a theory.
In the scientific sense, being a theory is far from a bad thing. It's the only thing:
Karl Popper described the characteristics of a scientific theory as follows:
- It is easy to obtain confirmations, or verifications, for nearly every theory — if we look for confirmations.
- Confirmations should count only if they are the result of risky predictions; that is to say, if, unenlightened by the theory in question, we should have expected an event which was incompatible with the theory — an event which would have refuted the theory.
- Every "good" scientific theory is a prohibition: it forbids certain things to happen. The more a theory forbids, the better it is.
- A theory which is not refutable by any conceivable event is non-scientific. Irrefutability is not a virtue of a theory (as people often think) but a vice.
- Every genuine test of a theory is an attempt to falsify it, or to refute it. Testability is falsifiability; but there are degrees of testability: some theories are more testable, more exposed to refutation, than others; they take, as it were, greater risks.
- Confirming evidence should not count except when it is the result of a genuine test of the theory; and this means that it can be presented as a serious but unsuccessful attempt to falsify the theory. (I now speak in such cases of "corroborating evidence.")
- Some genuinely testable theories, when found to be false, are still upheld by their admirers — for example by introducing ad hoc some auxiliary assumption, or by reinterpreting the theory ad hoc in such a way that it escapes refutation. Such a procedure is always possible, but it rescues the theory from refutation only at the price of destroying, or at least lowering, its scientific status. (I later describe such a rescuing operation as a "conventionalist twist" or a "conventionalist stratagem.").
One can sum up all this by saying that the criterion of the scientific status of a theory is its falsifiability, or refutability, or testability.
The difference between science and unscientific nonsense was well caught in Wolfgang Pauli's famous comment on a paper he was shown: "This isn't right. It's not even wrong."
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