Your system theory is not outside the box, it is as old as the hills.(and not the fundie 6,000 yr old hills... the real hills.)Maybe we should think outside of the box when considering our universe. Could the universe be a system and if it is, what kind of a system is it? We can see various systems in nature and some of them appear symmetrical with left and right sides. All natural systems are grouped that coordinate to perform a specific function like our bodies for example where various organs make up an organ system and specific organs are present on the left side and right side of the body. The universe must of had a function, but how and why is still being pondered.
why don't yo try thinking outside the box?