The Coming Death Shortage

Why the longevity boom will make us sorry to be alive

Anna Nicole Smith's role as a harbinger of the future is not widely acknowledged. Born Vickie Lynn Hogan, Smith first came to the attention of the American public in 1993, when she earned the title Playmate of the Year. In 1994 she married J. Howard Marshall, a Houston oil magnate said to be worth more than half a billion dollars. He was eighty-nine and wheelchairbound; she was twenty-six and quiveringly mobile. Fourteen months later Marshall died. At his funeral the widow appeared in a white dress with a vertical neckline. She also claimed that Marshall had promised half his fortune to her. The inevitable litigation sprawled from Texas to California and occupied batteries of lawyers, consultants, and public-relations specialists for more than seven years.

Even before Smith appeared, Marshall had disinherited his older son. And he had infuriated his younger son by lavishing millions on a mistress, an exotic dancer, who then died in a bizarre face-lift accident. To block Marshall senior from squandering on Smith money that Marshall junior regarded as rightfully his, the son seized control of his father's assets by means that the trial judge later said were so "egregious," "malicious," and "fraudulent" that he regretted being unable to fine the younger Marshall more than $44 million in punitive damages. [See a correction]

In its epic tawdriness the Marshall affair was natural fodder for the tabloid media. Yet one aspect of it may soon seem less a freak show than a cliché. If an increasingly influential group of researchers is correct, the lurid spectacle of intergenerational warfare will become a typical social malady.

The scientists' argument is circuitous but not complex. In the past century U.S. life expectancy has climbed from forty-seven to seventy-seven, increasing by nearly two thirds. Similar rises happened in almost every country. And this process shows no sign of stopping: according to the United Nations, by 2050 global life expectancy will have increased by another ten years. Note, however, that this tremendous increase has been in average life expectancy—that is, the number of years that most people live. There has been next to no increase in the maximum lifespan, the number of years that one can possibly walk the earth—now thought to be about 120. In the scientists' projections, the ongoing increase in average lifespan is about to be joined by something never before seen in human history: a rise in the maximum possible age at death.

Stem-cell banks, telomerase amplifiers, somatic gene therapy—the list of potential longevity treatments incubating in laboratories is startling. Three years ago a multi-institutional scientific team led by Aubrey de Grey, a theoretical geneticist at Cambridge University, argued in a widely noted paper that the first steps toward "engineered negligible senescence"—a rough-and-ready version of immortality—would have "a good chance of success in mice within ten years." The same techniques, De Grey says, should be ready for human beings a decade or so later. "In ten years we'll have a pill that will give you twenty years," says Leonard Guarente, a professor of biology at MIT. "And then there'll be another pill after that. The first hundred-and-fifty-year-old may have already been born."

Critics regard such claims as wildly premature. In March ten respected researchers predicted in the New England Journal of Medicine that "the steady rise in life expectancy during the past two centuries may soon come to an end," because rising levels of obesity are making people sicker. The research team leader, S. Jay Olshansky, of the University of Illinois School of Public Health, also worries about the "potential impact of infectious disease." Believing that medicine can and will overcome these problems, his "cautious and I think defensibly optimistic estimate" is that the average lifespan will reach eighty-five or ninety—in 2100. Even this relatively slow rate of increase, he says, will radically alter the underpinnings of human existence. "Pushing the outer limits of lifespan" will force the world to confront a situation no society has ever faced before: an acute shortage of dead people.

The twentieth-century jump in life expectancy transformed society. Fifty years ago senior citizens were not a force in electoral politics. Now the AARP is widely said to be the most powerful organization in Washington. Medicare, Social Security, retirement, Alzheimer's, snowbird economies, the population boom, the golfing boom, the cosmetic-surgery boom, the nostalgia boom, the recreational-vehicle boom, Viagra—increasing longevity is entangled in every one. Momentous as these changes have been, though, they will pale before what is coming next.

From religion to real estate, from pensions to parent-child dynamics, almost every aspect of society is based on the orderly succession of generations. Every quarter century or so children take over from their parents—a transition as fundamental to human existence as the rotation of the planet about its axis. In tomorrow's world, if the optimists are correct, grandparents will have living grandparents; children born decades from now will ignore advice from people who watched the Beatles on The Ed Sullivan Show. Intergenerational warfare—the Anna Nicole Smith syndrome—will be but one consequence. Trying to envision such a world, sober social scientists find themselves discussing pregnant seventy-year-olds, offshore organ farms, protracted adolescence, and lifestyles policed by insurance companies. Indeed, if the biologists are right, the coming army of centenarians will be marching into a future so unutterably different that they may well feel nostalgia for the long-ago days of three score and ten.

The oldest in vitro fertilization clinic in China is located on the sixth floor of a no-star hotel in Changsha, a gritty fly-over city in the south-central portion of the country. It is here that the clinic's founder and director, Lu Guangxiu, pursues her research into embryonic stem cells.

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Charles C. Mann, an Atlantic contributing editor, has been writing for the magazine since 1984. His recent books include 1491, based on his March 2002 cover story, and 1493.

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