Everything has to start somewhere, but who is to say when, where, how, or why it will end, or even if it will end at all. Physics, for example, is what it is because humans studied, measured, and named it. Not because we were given a manual and told what everything is and how it all works. That's life, we have to figure it out for ourselves. The problem is, people are not infallible. A prime example? All of the people who laughed at Christopher Columbus when he claimed the world was round. Sure, there are genuine facts in science that can be tested and proven. However, I do not believe that we are advanced enough to know and understand even as much as we think we do. I guess what I'm trying to say is that "reality" and "truth" are relative to what you "know" and/or believe.