Jason, do you not see that theories like these (formation of matter within stars) are tested by their predictive powers? Consider the "proof" for dark matter. Those who write the unobserved out of the equation as preposterous look at stuff, think about it, formulate hypothesis and then test the guess. When physicist finds "proof" --> it is in the form of a law or theory that "works" in that it explains stuff better than other thoughts and concepts. It sounds reasonable, right?
But what about unexplained phenomena?
The process is complex enough that the average person can not understand it but when we get into areas where things should be intuitive is where things get really interesting. For instance, we could reasonable expect that the stars at the outer part of spiraling galaxies would travel around the central "hub" of the galaxy in a way that makes sense according to the laws of physics, right? So that the measured speed of the stars at the outer parts would NOT be the same rotational speed of the center. Theories get strange when we try to explain. Very strange. Observers start with their so-called understanding of gravity and knowledge that by every observation rotational speed falls off as a function of distance. Rotational speeds are very predictable and even elementary algebra can express the equation in very basic terms such that the rotational speed of the outer stars would decrease inversely with the square root of the radius of the orbit.
Frankly, we don't know enough about what matter is and how it behaves to be able to explain stuff without resorting to what some have called "Magic" to provide the answer. If "Magic" is defined as blaming a cause on something invisible and unmeasurable and unproven, if Magic is the act of formulating hypothesis based on proposition of uknown existence of something?/someone?/somehow?/somewhere? theory then surely "Dark Matter" qualifies. Just because we label something with a term it doesn't mean we understand it. Postulating the existence of something does not prove it exists, right? But it is nice to be able to invent reasons for the way things work right out of thin air, isn't it? But wait, the theory of "Dark Matter" isn't invented out of thin air, at least that would be measurable!
[video=youtube;Hcc0dToHf18]http://www.youtube.com/watch?v=Hcc0dToHf18[/video]
Martha: . o O (( Oh my! He's beating that poor dead horse again. ))
Sparrow: "I can't help it, the owl has flown."