Periodically Americans have gone overboard indulging our propensities to self-gratification — during the 1840s, during the Gilded Age, and again in the Roaring Twenties. Yet each time, thanks to economic crises and reassertions of moral disapproval, a rough equilibrium between individualism and the civic good was restored.

Consider America during the two decades after World War II. Stereotypically but also in fact, the conformist pressures of bourgeois social norms were powerful. To dress or speak or live life in unorthodox, extravagantly individualist ways required real gumption. Yet just as beatniks were rare and freakish, so were proudly money-mad Ayn Randian millionaires. My conservative Republican father thought marginal income tax rates of 91 percent were unfairly high, but he and his friends never dreamed of suggesting they be reduced below, say, 50 percent. Sex outside marriage was shameful, beards and divorce were outré — but so were boasting of one’s wealth and blaming unfortunates for their hard luck. When I was growing up in Omaha, rich people who could afford to build palatial houses did not and wouldn’t dream of paying themselves 200 or 400 times what they paid their employees. Greed as well as homosexuality was a love that dared not speak its name.

But then came the late 1960s, and over the next two decades American individualism was fully unleashed. A kind of tacit grand bargain was forged between the counterculture and the establishment, between the forever-young and the moneyed.

Going forward, the youthful masses of every age would be permitted as never before to indulge their self-expressive and hedonistic impulses. But capitalists in return would be unshackled as well, free to indulge their own animal spirits with fewer and fewer fetters in the forms of regulation, taxes or social opprobrium.

“Do your own thing” is not so different than “every man for himself.” If it feels good, do it, whether that means smoking weed and watching porn and never wearing a necktie, retiring at 50 with a six-figure public pension and refusing modest gun regulation, or moving your factories overseas and letting commercial banks become financial speculators. The self-absorbed “Me” Decade, having expanded during the ’80s and ’90s from personal life to encompass the political economy, will soon be the “Me” Half-Century.