A capitalist society requires a culture based on images. It needs to furnish vast amounts of entertainment in order to stimulate buying and anesthetize the injuries of class, race, and sex. And it needs to gather unlimited amounts of information, the better to exploit natural resources, increase productivity, keep order, make war, give jobs to bureaucrats. The camera’s twin capacities, to subjectivize reality and to objectify it, ideally serve these needs and strengthen them. Cameras define reality in the two ways essential to the workings of an advanced industrial society: as a spectacle (for masses) and as an object of surveillance (for rulers). The production of images also furnishes a ruling ideology. Social change is replaced by a change in images. The freedom to consume a plurality of images and goods is equated with freedom itself. The narrowing of free political choice to free economic consumption requires the unlimited production and consumption of images.

The final reason for the need to photograph everything lies in the very logic of consumption itself. To consume means to burn, to use up—and, therefore, to need to be replenished. As we make images and consume them, we need still more images; and still more. But images are not a treasure for which the world must be ransacked; they are precisely what is at hand wherever the eye falls. The possession of a camera can inspire something akin to lust. And like all credible forms of lust, it cannot be satisfied: first, because the possibilities of photography are infinite; and, second, because the project is finally self-devouring. The attempts by photographers to bolster up a depleted sense of reality contribute to the depletion. Our oppressive sense of the transience of everything is more acute since cameras gave us the means to “fix” the fleeting moment. We consume images at an ever faster rate and, as Balzac suspected cameras used up layers of the body, images consume reality. Cameras are the antidote and the disease, a means of appropriating reality and a means of making it obsolete.

— Susan Sontag, On Photography, 1977