Syndarn wrote:(B). A conventional "conservative" scientific approach persons perspective says this is how it is 100% scientific fact.
The sad thing is you probably believe this. Which means you haven't paid attention to science since about grade school, when they DID tell you that what you're being taught is 100% true and there's no need to question it. But that was because you were a kid and because the things they were teaching you back then had been proven and tested enough times that they weren't really in question anymore.
But the real scientific perspective is this: Almost everything is just a theory that explains what we've observed so far, and any theory can be revised or disproven. Scientists take very little on faith, and are constantly revising and refining our understanding of the world, which is why even high school science books get outdated so quickly.
Scientific method starts when someone notices something odd that doesn't make sense in expected results or when someone decides to try to fill in a gap of knowledge. In the case of the knowledge gap, experiments are performed to find something new. A hypothesis is formed regarding the something odd or the something new. Experiments are performed to test the hypothesis to prove or disprove it. More experiments and maybe more hypothesis depending on what is proven or disproven. A paper is written detailing the results, which is reviewed by peers. The paper is published and several other scientists get to work trying to either confirm or deny the found results. If several confirm, then the new thing is considered to be probably accurate, at least until someone builds upon it, altering it further. There is very very little in science that is considered 100% fact.