Are the primal taboos dying?
This is the function of mythology and tragedy. The story of Oedipus, Medea (who kills her children), or Atreus (who feeds his brother his own children) allows a society to collectively gaze into the abyss of the primal taboo, scream, and then reaffirm the boundary lines of the human. We live in an age of transgression. In the 20th century, artists and philosophers like Georges Bataille ( The Story of the Eye ) celebrated the violation of taboos as a path to "sovereignty" and authentic experience. The internet has democratized the grotesque. Click a few links, and you can find communities that rationalize incest, market shock footage, or argue for moral relativism regarding cannibalism.
The next time you feel that sudden, wordless shudder of revulsion—whether at a news story, a film, or a fleeting thought—stop and acknowledge it. You have just brushed against a primal taboo. And in that negative space, that void of the unthinkable, you have discovered the hidden foundation upon which your entire moral world is built.
Postmodern thought argues that all boundaries are arbitrary social constructs. If the incest taboo is "just" a rule to prevent genetic defects, then what about cousin marriage (legal in many countries)? If cannibalism is "just" a protein source, is it immoral on a desert island?