Arella Mae wrote:Since when did evolution become a proven fact? I thought it was still a theory?
Alright, I'm going to assume you're serious here. I'm not trying to be insulting, but I'm always surprised when people say that kind of thing, since it's all over da interwebs as to why this distinction is misleading.
I'm going to set it up in numbered points to keep myself organized and the explanation simple.
In regards to strict scientific terminology:
1. a "fact" is a data or direct observations, observations so confirmed by repeated experiment that one looks very silly when doubting them in a scientific context. An example would be that say... dry maple leaves burn when lit on fire. I've simplified this, of course, but this is the type of thing I'm talking about. Simple observation, confirmed many times, very direct.
2. a "theory" is a scientific hypothesis or set of hypotheses that is put into a general statement. A theory tends to draw from a fairly wide range of confirmed hypotheses, facts, models, etc, and the 'theory of evolution', as is usually stated, is a very general scientific hypothesis. There are more specific theories, for example those that make up make up evolutionary theory, all of which then feed back into the general theory of evolution. It gets a bit confusing, but the basic point is that it's higher up on the structure of scientific hypotheses than most when it comes to how general a statement is.
The entire point of a theory is to explain a large set of data and confirmed hypotheses.
3. a "law" is a more specific statement or hypothesis concerning very specific phenomena, for which conditions are usually stated. Not only this, it is again one which is confirmed by many observations. They do tend to be well-confirmed, leading people to accidentally attribute greater certainty to laws than theories entirely by label, which is not so.
In common vernacular:
1. a 'fact' is something which is substantiated or essentially 'true' or accurate. It's fairly similar to the scientific version, but not so much that they are truly interchangeable.
2. a 'theory' is like a hunch or a guess. When your car breaks down you say you have a 'theory', often based on little actual testing, etc. This is much, much different from the scientific version.
3. a 'law' is a principle which cannot be violated without consequences. Rather than describing phenomena, it sets up an a priori rule of behavior. This is essentially the opposite of a scientific law.
So, now hopefully you can see the differences between these words. Laws are not automatically more confirmed or accurate than theories, facts are incorporated into both (in the scientific sense) but are not synonymous with either one (scientifically). Combining scientific terminology (s) with common vernacular (c), we can easily and validly make this statement:
the theory of evolution is a fact (c) and a theory (s). It is something so confirmed by observations that it is most certainly accurate, or true. It is also a scientific theory.
All of those silly laws you hear about teaching evolution as a theory don't damage the science one bit nor should they cast aspersions on the theory of evolution's validity. Of course, there's often a lot of BS riding along with those bills that
do damage science education.... :/
Finally, the word 'proven' muddles things as technically-minded people like scientists, mathematicians, etc, recognize that in a technical context, 'proofs' and something being 'proven' are entirely in a mathematical or logical realm. If you're talking about something that's very, very, very well-supported by evidence, evolution is 'proven' in that sense.
Edit: Here's a decent resource for these distinctions:
http://www.springerlink.com/content/21p11486w0582205/fulltext.pdf