The unknown is something that is veiled from man, shrouded perhaps by a terrifying context, but which, nonetheless, is within man's reach. The unknown becomes the known at a given time. The unknowable, on the other hand, is the indescribable, the unthinkable, the unrealizable. It is something that will never be known to us, and yet it is there, dazzling and at the same time horrifying in its vastness. There is a simple rule of thumb: in the face of the unknown, man is adventurous. It is a quality of the unknown to give us a sense of hope and happiness. Man feels robust, exhilarated. Even the apprehension that it arouses is very fulfilling. The problem with Science is a matter of Ego and Self Importance for it cannot conceive that the Unconceivable exist. The only thing I know for sure is that everything can be placed into these 3 spheres: The Known, the Unknown, and the Inconceivable. The known and the unknown are a finite set ; the known eventually becomes the unknown and the Unknown becomes known.