Temporal Equation Past Present Future There's always been space, but not time. When people say the universe was created some 13.5 billion years ago after the Big Bang and human being appeared several billion years later they're talking about the occurrence and existence of the universe with conception of time. Human being can't prove their existence without referring to time. Time is the most essential factor in the sense of existence, interpreted with narration, myths, science, and art . Art has been all a means to the interpretation of existence. Paintings and sculptures show not only forms but also the conception of time, which differs human beings from the other creatures on the Earth.
