Loop

“Nope. Gravitational anomalies.”

“What?” It looked like she’d be out of her league after all. A faint look of despair crept into her eyes.

Kaoru leaned forward and began to explain how these maps showed in one glance the earth’s gravitational anomalies.

“Okay, there’s a small difference between the values you get from the gravity equation and those you get by correcting gravitation acceleration for the surface of the geoid. Here we have those differences written on maps in terms of positive or negative numbers.”

The pages were numbered, “1” and “2”. On the first map were drawn what seemed like an endless series of contour lines representing gravitational anomalies, and each line was labeled with a number accompanied by a plus sign or a minus sign. The contour lines looked just like the ones found in any normal atlas, where positive numbers equaled heights above sea level and negative numbers depths below sea level.

But in this case, the lines showed the distribution of gravitational anomalies. In this case, the greater the positive number, the stronger the gravitational force, and the greater the negative number, the weaker the gravitational force at that particular location. The unit was the milligal (mgal). The map was shaded, too: the whiter areas corresponded to positive gravitational anomalies, while the darker areas corresponded to negative ones. It was set up so that everything could be understood at a glance.

Machiko stared long and hard at the gravitational anomaly distribution map she held in her hands, and then looked up and said, “Alright, I give up. What is a gravitational anomaly?” She’d long since given up trying to fake knowledge in front of her son.

“Mom, surely you don’t think that the earth’s gravity is the same everywhere, do you?”

“I haven’t thought about it once since the day I was born, to be honest.”

“Well, it’s not. It varies from place to place.”

“So what you’re saying is that on this map, the bigger the positive number, the stronger the force of gravity, and the bigger the negative number, the weaker, right?”

“Uh-huh, that’s right. See, the matter that makes up the earth’s interior doesn’t have a uniform mass. Think of it like this: if a place has a negative gravitational anomaly, it means that the geological material below it has less mass. In general, the higher the latitude, the stronger the force of gravity.”

“And what’s that piece of paper?”

Machiko pointed to the page marked “2”. This, too, was a map of the world, but without the complex contour lines: instead it was marked with dozens of black dots.

“These are longevity zones.”

“Longevity zones? You mean places where people tend to live longer?”

First a map of gravitational anomalies, and now a map of longevity zones—she was growing more confused by the minute.

“Right. Places whose residents clearly live longer than people living in other areas. This map shows how many of these spots there are in the world,” Kaoru said, indicating the black dots on the map. Four of them were actually marked with double circles. The Caucasus region on the shores of the Black Sea, the Samejima Islands of Japan, the area of Kashmir at the foot of the Karakoram Mountains, and the southern part of Ecuador. All had areas famous for the longevity of their inhabitants.

Kaoru seemed to think the second map needed no further explanation. Machiko, though, was looking at it for the first time. She urged him on. “So?” The real question now was, of course, what the two maps had to do with each other.

“Put one on top of the other.”

Machiko obeyed. They were the same size, so it was easily done.

“Now hold them up to the light.” Kaoru pointed to the living room chandelier.

Machiko raised them slowly, trying to keep the pages aligned. Now the black dots of the one were showing up in the midst of the contour lines of the other.

“Get it?”

Machiko didn’t know what she was supposed to get.

“Stop putting on airs. Tell me what I’m supposed to see.”

“Well, look—the longevity zones correspond perfectly to the low-gravity areas, don’t they?”

Machiko stood up and brought the pages closer to the light. It was true: the black dots representing longevity zones only showed up in places demarcated on the first map by low-gravity lines. Very low gravity.

“You’re right,” she said, not bothering to disguise her astonishment. But she still cocked her head as if not entirely convinced. As if to say she still wasn’t sure what it was all supposed to mean.

“Well, maybe there’s a relationship between longevity and gravity.”

“And that’s what you want to ask your father about?”

“Well, yeah. By the way, Mom, what do you think the odds were of life arising on earth naturally?”

“Like winning the lottery.”

Kaoru laughed out loud. “Come on! Way smaller. You can’t even compare the two. We’re talking a miracle.”

“But someone always wins the lottery.”

“You’re talking about a lottery with, like, a hundred tickets and one winner, where a hundred people buy tickets. I’m talking about rolling dice a hundred times and having them come up sixes every time. What would you think if that happened?”

“I’d think the game was rigged.”

“Rigged?”

“Sure. If someone rolled the same number a hundred times in a row, it’d have to mean the dice were loaded, wouldn’t it?” As she said this, she poked a finger into Kaoru’s forehead affectionately, as if to say, Silly.

“Loaded, huh?”

Kaoru thought for a while, mouth hanging open. “Of course. Loaded dice. It had to be rigged. It doesn’t make sense otherwise.”

“Right?”

“And humanity just hasn’t noticed that it’s rigged. But, Mom—what if dice that aren’t loaded come up with the same number a hundred times in a row?”

“Well, then we’re talking about God, right? He’s the only one who could do something like that.”

Kaoru couldn’t tell if his mother really believed that or not.

He decided to move on. “By the way, do you remember what happened on TV yesterday?” Kaoru was referring to his favorite afternoon soap opera. He loved the soaps so much that he even had his mother tape them for him sometimes.

“I forgot to watch.”

“Well, remember how Sayuri and Daizo met again on the Cape?”

Kaoru proceeded to recount the plot of yesterday’s episode almost as if it involved people he knew personally. Sayuri and Daizo were a young couple in their first year of marriage, and a series of misunderstandings had brought them to the brink of divorce. They were still in love, but coincidence had piled on coincidence until they were hopelessly tangled in the cords that bind men and women: now they were in a morass they couldn’t find their way out of. So they’d separated. And then, one day, by pure chance, they’d run into each other on a certain point of land on the Japan Sea coast. The place was special to them—it was where they’d first met. And as they began to remember all the wonderful times they’d had together there, their old feelings for each other had been reawakened. They cleared up their misunderstandings one by one, until they were sure of each other’s love again.

Of course, a heartwarming twist lay behind this trite tale. Both of them were under the impression that it was purely by chance that they’d run into each other on this sentimental promontory, but they were wrong. They had friends who were desperate to see them make up, and those friends had colluded, taking it upon themselves to arrange it so that each would be there at that moment.