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The mobile crew of Over the Limit is there, of course. And if history ever needs it, they have forty-five minutes of raw video proving that Thomas Kurton is not the first to use the instantly notorious term. That honor belongs to a sixty-five-year-old geologist turned reporter for one of the last popular-science glossies not yet driven to extinction by the Net. It happens at around the thirty-eight-minute mark, after Kurton has talked through his slides, run his animations, and spoken about “a new era in our understanding of the foundations of emotion.”

First, there’s an erudite question from a wire-service newbie about the ways in which other flavors of 5-HT receptor genes might be implicated. A veteran public-radio reporter asks about the penetration: What percentage of people with these alleles will actually be extremely buoyant? Someone else wants to know what role micro- and macroenvironments play in getting these genes to express. Kurton just shrugs and admits that the hard questions are still at large.

Then the former geologist and soon-to-retire magazine writer uses the term that everyone else was going to report anyway. “Are you telling us that you’ve found the happiness gene?”

“No,” Kurton says, the cameras catching his pained frown. “We’re not saying that at all.”

It’s like Jesus commanding his apostles not to let on about the Lazarus thing.

“What exactly are you saying?” Something about the science writer’s delivery makes the whole room laugh.

Kurton takes his time. “We’re saying that we’ve measured a very strong correlation. People with this grouping of key gene variants will be far more likely to enjoy elevated affective set points than those who do not. All other things being equal.”

All other things are never equal. But before anyone can point out that impossible catch, the éminence grise from the Times asks if the study has pharmaceutical or clinical implications. A grinning Kurton replies, “It might!” A sardonic chuckle issues from the audience, as they realize that’s his final answer.

Schiff raises her hand. Kurton doesn’t seem to recognize her as he takes her question. “Your hyperthymic subject the one with the optimal combination? How many others like her would you say there are, walking around out there?”

Kurton can’t suppress a covert grin. “We need more data on the frequency of alleles in different populations and the way they assort with regard to one another. Akiskal estimates that about one in a hundred people in the general population meet the research criteria for hyperthymia. If you forced me to guess right now, I’d say about one in ten thousand of those already fortunate subjects are also immune to unstable negative moods and intemperate behavior.”

She does the math. “So roughly one in a million?”

His grin fades, unsure where she’s going. “You could put it that way.”

She means to ask: Why is the “optimal” configuration so damn rare? What doesn’t natural selection like about it? Why should perfect bliss be hundreds of times less common than cystic fibrosis? But she misses her chance, and the rest of the conference plays out in variations on: How soon can you make the rest of us feel a little better?

Even those journalists who use a question mark in their headlines barely disguise their excitement. Science has found a chief genetic contribution to bliss. Genomics now knows what combinations of inherited material help lower negative affect and raise positive. Happiness gene identified? Did you think it would evade detection forever?

The Alzheimer’s gene, the alcoholism gene, the homosexuality gene, the aggression gene, the novelty gene, the fear gene, the stress gene, the xenophobia gene, the criminal-impulse gene, and the fidelity gene have all come and gone. By the time the happiness gene rolls around, even journalists should have long ago learned to hedge their bets. But traits are hard to shake, and writers have been waiting for this particular secret to come to market since Sumer.

The wire services each run their own account, reaching a whole rainbow of conclusions about what, if anything, the new findings mean. The 1,100-word Science Times article makes only five to seven errors, depending on who’s counting. Newsweek puts the story on their cover: Better than sex, stronger than money, more lasting than prestige The secret of happiness? BeBorn Happy. Page 28 of the same issue is an ad for a drug company with a substantial financial interest in Truecyte.

Two of the big-four late-night comedians incorporate the story into their monologues:

So science has finally discovered that happiness is mostly inherited. But just remember, these are the guys who discovered that sterility may be inherited It’s interesting that, for some reason, the happiness genes aren’t particularly widespread. Not as widespread as, say, the obesity gene. Now the obesity gene: talk about wide spread

The Truecyte announcement runs through the meme pool like a wave through a football stadium. Websites everywhere poll user responses; the story gets four stars for newsworthiness, four stars for importance, and five stars for entertainment value. By rough count, two-thirds of the commenting public believe that nature contributes more to happiness than nurture, up from 50 percent a year ago. Two in five believe that science will soon be able to manipulate the genetic component of happiness to our advantage. Most people believe that if Truecyte has done original work to make a useful discovery, they should be able to profit exclusively from it. Eleven percent of the general public thought the happiness gene had already been found.

The discovery hits at the perfect time. The war has spilled over into a third neighboring country, and fatalities are at a forty-five-month high. A new study from the Union of Concerned Scientists shows that global greenhouse-gas emissions may have been greatly underestimated. Scattered outbreaks of a new fatal flu strain come in from central Asia. Recent tests show heavy-metal contaminants increasing dramatically throughout the food chain. Two decades of Ponzi schemes have unraveled the global financial markets and erased trillions of dollars of imaginary wealth. A terrorist cell in Southern California is rounded up, halfway to constructing a dirty bomb.

And scientists discover the genetic cause of joy.

In the final cut of “The Genie and the Genome,” finished just after the first article comes out in The Journal of Behavioral Genomics, Kurton refers to her simply as “Jen.” He describes how the group predicted her genomic signature, based solely on her psychological tests. He shows a color-enhanced animation of her fMRI:

Coordinated activity in these areas associates with sustained positive emotions. Look at her baseline: it’s a symphony.

His excitement ratchets up when talking about the process:

You feed the amplified DNA fragments into this high-throughput optical reader We can do a temperament analysis for under $1,000.

“Do you take Visa?” the off-camera host asks. His smile says: Choose your payment method.

He’s guarded about the interconnected patents his data rely on, but more voluble about the countless interconnected enzyme factories that contribute to the brain’s reward circuitry. He concedes the many genes that emotional well-being involves. Genes that control the pathways and synthesis of crucial neurotransmitters. Genes that assemble the machinery of neurotransmitter release and reuptake. Genes that wire together the centers of perception, memory, and emotion