Generosity

consume milk with impunity, with the skill still spreading around the globe like a pandemic.

I want to know how long three hundred generations is, on an evolutionary scale. I want to know how fast lactose tolerance will move through the rest of the dairy-fed globe. I need to know how fast a tolerance for the lactose of human kindness might spread-how long it might take for the generosity haplotype to run through the race and fit us out with a new, stunning skill.

Thassa gets wind of her anonymous renown. You’d have to be an off-the-grid Tuareg not to come across the happiness gene somewhere in some medium. And people who react to stories about the happiness gene also react to stories about the woman who has it in spades.

She follows the mounting Jen speculation on blogs across the Web. She even leaves comments here and there, saying that no such creature exists. In fact, Jen is more imaginary to her than Gabe Weld’s little digital angel. If people want mystery and imagination and inexplicable temperament, they should just read Assia Djebar. The whole “genetically perfect happy woman” story will disappear as fast as last month’s runaway curiosity-a young man from Maryland who can tell with 98 percent accuracy when any other human being is lying. And Jen will leave no more lasting a trace.

The doings of Thassa’s alter ego are the least of her worries. The spring semester is nearing its climax, and she’s struggling. The demands of the film curriculum and her own appetite leave her overstretched. She’s taking Advanced Production; Culture, Race, and Media; History of Documentary; Location Sound Recording; and Ecology, the last of her general-education requirements. She’s singing in the Balkan choir and trying to form a Maghrebi one. She’s showing Kabyle films to the weekly CineClub, where she’s already given elaborate presentations on Bouguermouh’s La Colline oubliee, Meddour’s La Montagne de Baya, and Hadjadj’s Machaho. She’s fallen in with bad mah-jongg influences. And she’s started what can only be called a liaison.

It begins when Kiyoshi Sims, seated next to her in the media lab, shows her a transitions trick in the digital- video editing software. She, in turn, shows him how to sit for fifteen minutes in the school cafeteria without having a panic attack. Almost by chance, they develop a routine. He helps edit her semester studio project, a short composited sequence called Come Spring. And she slowly desensitizes him to going out deeper into public.

By late April, they’ve graduated to the point where he can sit with her in that famous blues club on South State on a Friday afternoon, long enough to eat something. They share fried catfish and okra with honey-mustard sauce and beers that neither of them touch, listening to the Delta twelve-bar keening over the sound system. Kiyoshi has grown so bold as to drum along on the tabletop. Now and then he even rips a little air-guitar lick, although his riffs are so discreet it’s more like air ukulele. He stops when anyone nearby makes a sudden move.

They sit in the shallows of contentment, just about to wrap things up and return to their respective Friday-night film editing, when Sue Weston discovers them. Neither of them has seen Artgrrl for weeks. They share a minireunion, after which a terrified Kiyoshi slips away and barricades himself in the men’s room.

Sue shoots Thassa an I’m-onto-you grin. Thassa braces, preparing an explanation of the Sims-Amzwar special relationship. Surely the art-school ecosystem is broad enough to permit such a symbiosis.

But Artgrrl blindsides her. “It’s you, isn’t it? The woman with the happiness genes. You’re all over the Net. Jen is Miss Generosity.”

Thassa flips a fork across the table, decidedly ungenerous. “Jen is a scientific hallucination.”

Artgrrl steps back, her face crinkling. “Of course it’s you!” She swallowed a little stimulant twenty minutes earlier, a prelude to Friday night, and it’s juked her up a notch. “I can’t believe nobody’s made the connection. I mean, those other stories about you, last winter? The whole hyper thing ”

The Kabyle lowers her head and places her ear on the tabletop. “There is nothing special in my blood.”

Weston sits down in Kiyoshi’s abandoned chair and places a hand on her shoulder. “Maybe not. But what difference does that make? This whole Jen thing is on the verge of being, like, the It deal of the season, and it’s not going to last much longer. You should go for this. Think of the eyeballs. You could post your films and get thousands C’mon, girl. Fame is the new sex!”

Thassa lifts her head, a dry little glint. “Hey! What about the old sex, first?”

“Are you for real?”

“I can’t help. I come from a repressive culture.”

“Oh, my God.” The American covers her gaping mouth. “They didn’t like, cut you or anything, over there?”

“Oh, not that repressive culture! I mean Quebec.”

Sue’s grin tries to steer into the skid.

Thassa touches two fingers to her elbow. “You shouldn’t believe everything you think!”

The suckered American fingers her lips. “You lying little minx!” She steps back from the Algerian, approving. “You’re messing with me.” But before Sue can right herself, Kiyoshi returns, hoping to retrieve his computer bag and make a clean getaway before the human-contact thing gets out of hand. Sue reappraises the shrinking boy and giggles with new admiration.

Thassa follows Kiyoshi in escape. But before she can flee, Sue squeezes her goodbye, gauging her again with that gleam. You can’t hide from me, the look says. Have fun with Invisiboy, if you don’t kill him first.

Later that night, Sue Weston logs in to her blog and posts her new entry: “Bird of Happiness, Tagged.” She spells out the argument with a clarity that would make her onetime writing instructor proud. She links to last November’s StreetSharp transcript, the Reader article, and all the noise of a few months before. Just the facts. Nonfiction, without the creative. Her own kind of science, with first prize for priority.

It’s not like she’s making facts public; the facts were never private to begin with. She’s twenty-one, young enough to know that there is no more public or private. There are only slow facts and fast facts, linked and unlinked, and every two sequences of value will eventually be correlated. Someone will publish the connection in another few days anyway, if she doesn’t. And why should someone else’s blog get all the eyeballs?

Schiff arrives in El Kef with her guts emptied and her brain in a similar state. She stands at the window of her hotel room in the Ville Nouvelle, above the Place de l’Independance, too light-headed to make out much more than the massive Byzantine fortress looming up out of a tumble of stone and whitewashed plaster. The streets of the medina twist down from the Casbah’s foot. More town spills down the other slope, a jumble of white-and-tan blocks watched over by minarets and domes. The tip of a cellular radio tower peeks out above the fortress, puncturing Tonia’s Orientalist fantasy. Coming here was mad. She’s like a time traveler from the golden age of pulp science fiction, trying to change a future that has already happened.

Schiff stands motionless, looking, until a heavyset man with a paintbrush mustache comes out on a balcony across the Place and returns her inspection. She turns back into her stale room. The detailed discovery of the town will wait a day, until she can do it right. As Thassa once told her, tomorrow will be there, as soon as you need it.

Schiff sheds her crumpled road clothes and takes a lukewarm shower in the tiny, open stall. Her head still spins from the louage, and she never wants to eat again. She wraps herself in a towel and stretches out on the bed. She finds her ratty pocket spiral notebook and writes: We talk tomorrow. For a moment, the whole expedition seems almost plausible. If I can record ten minutes, I’ll be happy.

All the while, she pretends she isn’t jonesing to discover whether the world as she knows it has continued to exist during her day away. At three minutes to the hour, she casually flips on the television (a broken remote left ceremoniously on the bedside table by the hotel staff) and trawls the channels like the worst of quidnuncs.

This two-star hotel in an outpost of forty thousand people in a remote western province of a little country wedged between the chaos of Algeria and the void of Libya pulls in more cosmopolitan broadcasts than she gets in New York. She pounces on the BBC like a starving person. The world is much as she left it. The day has gone like