How do you explain evolution to people who believe that it is just a guess, a hunch or not proven as a fact?
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Answer:
However, when it comes to some of the most fundamental concepts in science, there is a dearth of unambiguous terminology. Worse still, words with relatively clear meanings in the vernacular are employed with very different definitions in science, a phenomenon that greatly confuses discussions of science when they are conducted in nonscientific contexts. For example, terms such as “energy” or “force” have specific meanings in physics that are easily confused when commingled with their common usages. This ambiguity has been exploited to considerable advantage by many a huckster who falsely invokes the respectability of science in the sale of products that would, in actuality, contradict well established scientific principles if they really exerted any of their claimed effects.
Even more generally, terms relating to the process and products of science itself, such as “theory” and “law”, are almost diametrically opposite in scientific vs vernacular settings. This has been a source of both honest confusion and intentional obfuscation in discussions of science, especially with regard to evolution—which has, with the full thrust of equivocation, been misleadingly labeled as “just a theory” by opponents for decades. The intent of this article is to clarify the general meaning of some central concepts in science and the terms used to describe them, and to differentiate these from the very different definitions of the same words in common usage. The specific application of these terms, as defined in science, to the topic of evolution will be discussed in some detail.
Defining Terms
Hypothesis, theory, fact, law. Prefaced with “hunch” or “guess”, this list of terms would reflect what many people consider a graded series from least to greatest degree of certainty. This ranking may be appropriate in common usage, but actually makes little sense when these words are employed in a scientific context.