by Kwame Anthony Appiah
Once, pretty much everywhere, beating your wife and children was regarded as a father's duty, homosexuality was a hanging offense and waterboarding was approved — in fact, invented — by the Catholic Church. Through the middle of the 19th century, the United States and other nations in the Americas condoned plantation slavery. Many of our grandparents were born in states where women were forbidden to vote. And well into the 20th century, lynch mobs in this country stripped, tortured, hanged and burned human beings at picnics.
Looking back at such horrors, it is easy to ask: What were people thinking?
Yet, the chances are that our own descendants will ask the same question, with the same incomprehension, about some of our practices today.
Is there a way to guess which ones? After all, not every disputed institution or practice is destined to be discredited. And it can be hard to distinguish in real time between movements, such as abolition, that will come to represent moral common sense and those, such as Prohibition, that will come to seem quaint or misguided. Recall the book burners of Boston's old Watch and Ward Society or the organizations for the suppression of vice, with their crusades against claret, contraceptives and sexually candid novels.
Still, a look at the past suggests three signs that a particular practice is destined for future condemnation.
First, people have already heard the arguments against the practice. The case against slavery didn't emerge in a blinding moment of moral clarity, for instance; it had been around for centuries.
Second, defenders of the custom tend not to offer moral counterarguments but instead invoke tradition, human nature or necessity. (As in, "We've always had slaves, and how could we grow cotton without them?")
And third, supporters engage in what one might call strategic ignorance, avoiding truths that might force them to face the evils in which they're complicit. Those who ate the sugar or wore the cotton that the slaves grew simply didn't think about what made those goods possible. That's why abolitionists sought to direct attention toward the conditions of the Middle Passage, through detailed illustrations of slave ships and horrifying stories of the suffering below decks.
With these signs in mind, here are four contenders for future moral condemnation.
Read more at The Washington Post.