Your eye can be a clock or a camera. A blind man’s world is bounded by the limits of his touch and he relies on his timing; an ignorant man’s world by the limits of his wisdom; a successful man’s world by the limits of his vision and sense of timing. Man is the most complex eukaryote. Therefore he has the most sophisticated time piece in his eye that controls protein turnover. Protein turnover is a synonym for ubiquitin marking.