They say that the reason the universe is so perfectly formed and balanced is that if it were not, we wouldn't be here to observe and speculate on it. But these are not really answers, they are just attempts to explain the unexplainable. What they overlook in all this is something without which all their speculations are worthless. That is the existence of physical law. Everything talked about in this booklet follows laws.
Gravity follows law.
That law was described by Newton and later modified by Einstein. Puny man may not yet perfectly describe that law, but it undeniably exists. It never changes, though human descriptions of it may change. The whole universe follows the law of gravitation and myriad other laws. From the smallest subatomic particle to the largest galaxy, laws are followed perfectly and for all time.