"What we know of the world comes to us primarily through vision. Our eyes, however, are sensitive only to that segment of the spectrum between red and violet; the remaining 95 percent of all existing light (cosmic, infrared, ultraviolet, gammas, and x-rays) we cannot see. This means that we only perceive 5 percent of the “real” world."
— Amos Vogel, Film scholar, born April 18, 1921