Seven

According to Newton’s theory, visible light should be divided in seven primary colors, in order to join musical harmony. Here, a folded black panel divide white light into seven colors, but these tints are constantly changing, so the division becomes subjective. As any monochromatic wavelength could be adjusted ad libitum, visible light spectrum have to be seen as a continuum, where infinite possibilities occurs. How many realities could cohabit into our own perception ?