Chalnoth
Senior Contributor
Well, technically, there are three possibilities:Every scientific theory must make risky predictions, things that will be found if the theory is true. If these predictions turn out to be false then the theory is false. There is no reinterpretation.
1. The experimenters made a mistake.
2. The theorists made a mistake in how they drew conclusions from the theory.
3. The theory was wrong.
All three happen from time to time, and the key is discovering which. The first is corrected for by independent analysis of the same phenomenon, or of related phenomena that measure the same parameters in the theory. The second is corrected for by independent investigation into what the conclusions of the theory actually are (this part is mathematical, and can thus be proven). If the first two are shown not to be an issue, then the theory is either modified or discarded. And this is, by the way, the most exciting thing for scientists to discover: new theories don't come up every day. Finding that we have an experiment that can't be explained by current theories means we have a way of discovering something fundamentally new.
But when a theory passes the tests again and again, as evolution has, we gain confidence that even if the theory isn't correct everywhere, there is at least a realm of application for which it is valid. This is the case for Darwinian evolution, even though biologists have significantly modified the theory: the original theory still stands up to essentially all observations within a specific range of application.
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