Yesterday, we “knew” the evolutionary origin of modern horse breeds.
Today, POOF!!, we don’t. What changed? The horse breeds? No...Our understanding of the scientific data changed.
The science lesson for today?
Science is a collection of theories that are supported by data. But newer data can diminish the validity of an accepted theory or destroy it altogether.
If someone refuses to debate evidence by saying “oh, that’s ‘settled’ science”, they are disingenuous (think liberals on global warming). Science, BY DEFINITION, is NEVER settled.
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