Many phrases and words have a different meanings in science than they do when spoken by the general public. Some scientists argue that the misunderstood terms should simply be replaced, but that just prolongs the problem. If “theory” is replaced with some other word, then it’s almost inevitable that his “new” word will also be misused every now and again. Instead, a better science education is needed in order to help people understand the terms scientists use to define our reality. So, without further adieu…
Theory is probably one of the most abused scientific terms out there. The phrase “that’s just a theory” is a common attack on scientific theories by people who don’t understand the term. How many times have you heard anti-evolutionists use the phrase “well, evolution is just a theory. Get back to me when it’s a law.” Theories are one of the pinnacles of science and are widely accepted in the scientific community as being true. A theory is not a random idea that scientists came up with on the spur of the moment; they have been well tested and shown to be true under the rigors of scientific experiment. Whereas a theory can never be proven true, they do have evidence that supports the original idea, demonstrating its “trueness.”
Model is also a troublesome word for several reasons. Firstly, a scientific model (in most contexts) is a way of quantifying a particular natural event to help us understand it better. They vary a little in the exact usage of the definition in different fields of science, but the basic idea is the same.
Scientists spend a ton of time comparing competing models to one another, refining their models, and generally working to make the model as accurate as possible. The overwhelming consensus of climate change comes from our climate models. As we collected more data, and studied the way the biosphere operates, we were able to refine our climate models. This gave us insight to more pieces of the climate puzzle, which lead to the unsettling realization that current human activity is having a severe and unfavorable impact on the environment.
“Be skeptical. But when you get proof, accept proof.”
That quote by Michael Specter is brilliant for describing what true skepticism should be. In the media machine today, the term “skeptic” is often applied to people who accept pseudoscience because they are “skeptical” of mainstream science: “vaccine skeptics,” “climate skeptics,” “pharmaceutical skeptics,” and so on. The term gives these people (and other similar groups) a bit too much credit. Generally, they are ignoring proof and evidence. Michael Mann, a climate scientist from Pennsylvania State University, summarized it best when he said, “Denying mainstream science based on flimsy, invalid, and too-often agenda-driven critiques of science is not skepticism at all. It is contrarianism … or denial.”
A true skeptic is willing to look at all of the scientific evidence available and is willing to analyze it without bias. When the evidence says something, a skeptic can accept the outcome before them…until new evidence is presented.
Ah, significant… That is a huge problem, and it is often used in the phrase “statistically significant” or an epic misuse of the term. Statistically significant is thrown around in everyday life to describe something very important. “There has been a statistically significant increase in autism for children who got vaccines,” that’s a phrase I’ve heard plenty of times. Firstly, in a scientific setting, “significant” doesn’t mean “important.” Statistically speaking, something that is “significant” is simply something that is unlikely to occur given random chance. That doesn’t necessarily mean there is a meaningful result. If a scientific experiment is set up correctly, then a statistical significance might reveal a lot. If the experiment is set up poorly, as is the case with many pseudosciences, then significance doesn’t mean anything because all of the variables weren’t controlled.
Natural has turned into a word to define health and vitality; “Pharmaceutical companies are the enemy, They promote drug dependency t the cost of the natural remedies that are all our bodies need. They are immoral and driven by greed. Why take drugs when herbs can solve it? Why use chemicals when homoeopathic solvents can resolve it? It’s time we all return-to-live with natural medical alternatives.” Though quoted from Tim Minchin’s Storm, that basically sums up the argument for “natural” things. Natural is a term that’s often equated with health and vitality. A “natural” drug is *always* better than pumping your body full of chemicals made in a lab.
Firstly, not everything that’s “natural” is good for you. “Natural” simply means “existing in nature.” Arsenic is natural, and I’m pretty sure you don’t want to take it as a natural remedy. Even natural things that are good for you should only be taken in moderation, including salt and water (it’s hard to die from water poisoning, but it’s possible). Even using the pseudoscience definition of what is “natural”i.e., alternative medicines, natural still isn’t always a good thing. Advertising companies promoting natural products have been known to make all sorts of fraudulent claims, and when people buy into the natural remedy over real medicine, then some serious health complications can occur.
While we’re talking about natural remedies, we have to mention chemicals. The anti-fluoride movement gets a lot out of calling fluoride a chemical, proposing that it’s bad to add to the water because we don’t want to be ingesting those evil chemicals. Scientifically speaking, chemicals are everywhere. A chemical is something that’s studied in chemistry; that’s pretty much anything made from atoms (since chemists don’t concern themselves with particle physics, atoms is about as small as they go). Oxygen, water, nitrogen, everything you’re eating, drinking, and interacting with is made from chemicals. There are chemicals that are required for life to exist and there are chemicals that will kill humans (among other animals) very quickly. Too much of any chemical will kill you, and not enough of several of them will too.
The problem with the prevailing culture of scientific illiteracy lies with the school system. In America, and other parts of the world, middle and high school students aren’t given a rigorous scientific education. These terms are then misinterpreted and, as a result, we get a lot of denial of scientific facts and a distrust of the scientific process running around. So try and remember the real definition of these words the next time you hear them used in conversation.
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