To be sure, there is still much work to be done to fully understand every last aspect of human life, if that is indeed possible. Perhaps trying to understand the basis of human life is like trying to grasp what existence was like just prior to the creation of the universe.
For example, we still do not understand why a cell that divides into two halves ends up producing two single cells just like the one they came from. Anywhere else in the universe something divided into two parts creates two halves, not two wholes. A simple miracle, but one upon which all of human life depends.
But perhaps the biggest mystery surrounding the human being has little to do with its physical existence. To this very day, there is little agreement on just what is human consciousness.
To the religious individual, human consciousness is a result of the soul God breathed into man, as recorded in Genesis 2:7. But to the non-religious, human consciousness is, well, whatever it is, itís not a soul.
Why is it not a soul? So far, it seems, because it is not visible, and what the eye cannot see the mind has difficulty believing. But that discussion is not as crucial at this point than the one that indicates a lack of unanimity amongst the "experts' regarding the "other side' of the human being, that is, the seemingly non-physical part of the human.
So really then, in the equation of life, the "human" factor is also a variable, which again, makes the equation unsolvable in any consistent way. Around the world as the definition of the human being changes, so will THE "Y" FACTOR.
Everybody wants to fulfill their potential and be happy, but what is that potential? That will depend upon oneís understanding of the human being, and ultimately, the source of that information.
To the Founding Fathers of the United States of America, their notion of a human being prompted the drafting of the American Constitution. To the Marxists, their understanding led to the creation of a communist society. To a Hitler, his belief that man was meant to be subject to the laws of nature justified his overwhelming desire to eradicate the entire Jewish population.
The greatest struggle of mankind, perhaps, is the struggle to understand itself. The Greeks had one point of view and invented Hellenism as a vehicle to fulfill their potential. The Romans differed and instead became technocrats and conquerors. Later religions came along and altered both definitions and came up with a doctrine to "help" mankind achieve its destiny. The result has often been just the opposite, and a lot of destruction instead.
After thousands of years of history, the definition of the human being is still being altered, especially as we advance technologically and become more experienced. But the harder we seem to look for a precise definition, the more elusive the definition seems to become.
If only there was an absolute definition of the human being. With such a definition, it would be easy to discover an absolute "y" factor, and probably peace for all mankind. If only there was a source that at least claimed to have such a definition from a reputable source, at least there would be a place from which to start!