magpies said:
I'm kinda just hoping someone who doesn't agree and mostly gets what I am saying will help me to get a better understanding of it myself.
Please try and listen with an open mind. I can't speak for everyone else, but I'm open to a little criticism of how I conduct myself, and so I hope you will be too.
The problem is, you're assuming that we're all in the same boat, and none of us understands the subject better than any other. This is not the case. Most of the people who responded to you understand the subject very well. You seem to be a beginner. And that's fine! Great, even. Beginners are very much welcome here. But you aren't going to learn anything if you take the attitude that no one should try to convince you of anything, but instead we should somehow "try to use your question to understand it better ourselves". You aren't saying anything insightful enough to revolutionize our world, and you're being a little arrogant for thinking that you are. It's not that beginners never ask questions that insightful; sometimes they do, but yours isn't one of them. Sorry if that's disappointing. It shouldn't be.
Based on your question, it sounds like maybe you aren't 100% sure what the concepts you're trying to talk about "look like". We can try to help you understand them better, but you're going to have to trust us. And you're going to have to try to think more clearly and precisely, because, unlike art, physics is a clear and precise subject. Unlike the arts and humanities, the sciences cannot be understood vaguely or clumsily. The details are *everything*.
You need to make an effort to phrase what you're trying to say clearly enough that someone can tell what you're trying to say. The effort of trying to do that, in itself, will actually give you a better, more detailed understanding of what you're saying. Sometimes, someone answers their own question just by finding a more precise way of phrasing it!
A constant is a number that doesn't change. More specifically, it doesn't change when you change something else. If "A is constant with respect to B," that means that "changing B doesn't change A". Light and gravity are not numbers. You might be trying to say that light doesn't change as it moves through space, but even that isn't totally right, because it does actually spread out as it moves. The same is true for gravity. Mass IS actually a number, but it certainly isn't constant. Weight yourself two weeks in a row and you'll see that your mass changes! Now, it is true that mass is conserved can't be created or destroyed, if that has anything to do with what you're trying to think about. But that doesn't have anything to do with constancy of the speed of light.
