"Recently, photography has become almost as widely practiced an amusement as sex and dancing - which means that, like every mass art form, photography is not practiced by most people as art. It is mainly a social rite, a defense against anxiety, and a tool of power.
~ Susan Sontag, "On Photography," 1977
Of late I have seldom been in a social situation - even yoga and meditation classes! - that was immune from being captured for all to see throughout the universe in perpetuity via Facebook and Instagram.
Way back in the previous century, I recall shooting - somewhat noisily - photographs on 35mm celluloid film. Thirty or forty centimes per photo after developing added up quickly and made me think twice before clicking. But now a 64 gig IPhone 6 can hold 3,000 photos so it literally costs nothing to snap indiscriminately."