It was only natural for Hideyuki to stick at that point. Kaoru felt the same way. How exactly should he define a longevity zone? Was it an area with lots of long-lived people in it? Perhaps an area where the average lifespan was longer than in other areas? If that was what he meant, there was nothing to prevent him from seeing all of Japan as one big longevity zone.
He had to use a more limiting definition. It would be more exact, at least, to stipulate that a longevity zone was an area clearly delineated from the surrounding territory, a high percentage of the inhabitants of which were a hundred or more years in age.
But in reality, no such mathematical definition existed. The villages that he’d seen talked about on TV were simply places that had been found, statistically and experientially, to have lots of long-lived people in them, and they were known for it.
“I’m not sure there is a mathematical definition.”
He found it more and more curious that the villages mentioned on TV, defined as impressionistically and sentimentally as they were, should match up so nicely with gravitational anomalies, so clearly visible as numerical values. Kaoru and Hideyuki both were impressed by this.
“Too vague. Still, I wonder why it came out like this?” Hideyuki said this under his breath, as if bothered.
“Have you heard anything about the relationship between gravity and life, Dad?”
“Well, they did an experiment where they had a chicken lay eggs in a zero-gravity environment, and they turned out to be unfertilized eggs.”
“I’ve heard about that. That was ages ago.”
Somewhere in the corner of his mind he recalled the sight of his father’s sperm three months ago. He remembered reading an article about the chickens, which had laid unfertilized eggs in spite of the fact that they had copulated. He’d forgotten exactly what the experiment had been trying to prove. He’d read about it in a mass-market weekly, which had seized on the results of what was actually an old experiment in order to make some point about modern sexuality.
His imagination started to run away with him. Suppose an egg started to undergo cellular division without fertilization, growing through birth to maturity—what kind of human being would result? Kaoru got a mental image of a woman with a smooth, egg-shaped face. He shivered. He tried to banish the image, but the woman’s slippery face wouldn’t leave him.
“Well, nobody’s made a logical connection yet, I don’t think. But anyway, why did you think to compare gravitational anomalies and longevity?”
“Huh?” Sometimes the images taking shape in his brain undermined Kaoru’s ability to think, and he couldn’t hear what was being said to him.
“Stop making me repeat myself.” Few things annoyed the impatient Hideyuki more.
“Sorry.”
“What gave you the idea, in other words?”
Kaoru explained how a TV special on longevity villages had been playing in the background while on the computer he’d been looking at a map of gravitational anomalies, and how he’d had a flash of intuition.
“I think it was just a coincidence.”
“Meaningless coincidences produce nothing. Take jinxes, for instance.”
“Jinxes?”
Kaoru actually had something of an idea why his father would bring up something unscientific like that now. He was trying to give Machiko an entry into the conversation.
Having pretty much finished fixing snacks to go with the beer, Machiko had joined them at the dining room table, where she sat listening to the conversation without offering up a word. Not that she’d looked particularly bored, but she did lean forward just a bit when her husband mentioned jinxes.
Her reaction didn’t escape Hideyuki’s notice.
“Hey, Machi. Know of any interesting jinxes?”
“Why ask me?”
“You like that kind of thing, don’t you? Fortune-telling, charms, stuff like that. Don’t think I haven’t noticed you reading the horoscopes every week. Plus, you know a lot about folk-tales from around the world.”
“Okay, jinxes. How about the one that says if you give a handkerchief to your lover as a present you’ll break up?”
“Everybody knows that one. Don’t you know anything, you know, weirder?”
Kaoru thought he could guess what kind of thing his father was looking for. He was probably trying to find an example of a belief that connected, seemingly at random, two disparate phenomena.
“Something weirder? Okay, how about this? If you see a black cat swimming in a river, someone close to you will die.”
Kaoru immediately pursed his lips. “Really?”
“That’s what they say. You’ve heard it, haven’t you, dear?” She looked at Hideyuki for support. But he just laughed and cocked his head.
“Don’t you have any that are just way out there?”
“How about the one that says, when you leave the house, if a chair has its back to the window, you’ll drop your wallet?”
Hideyuki clapped his hands.
“Okay, we’ll go with that one. Now, it may be true or it may be false, but let’s just take it as a given that such a superstition exists.”
“It does!” Machiko frowned.
“Alright, alright!” Hideyuki said, putting his palms together. “Now, we have two phenomena brought together. A chair having its back to the window when you leave the house, and dropping your wallet. Scientifically, these two phenomena have no relation to each other. There are lots of superstitions in the world, and no doubt different kinds come about for different reasons. But what I find fascinating is when you have the exact same superstition existing in two distant places, isolated from each other. If this crazy superstition that Machi just told us about happened to exist in different places on the globe, it’d make you wonder, wouldn’t it? Of course it would.”
“So, are there superstitions like that? That exist in different places in the world?” Kaoru looked back and forth between Machiko and Hideyuki.
Hideyuki prompted his wife. “How about it, Machi?”
“Of course there are. The jinx I just told you about is one. It exists in Europe and in the Americas, too.”
Kaoru and Hideyuki exchanged skeptical looks.
“By the way, Machi, have you ever thought about why superstitions arise?”
“No,” she said, curtly.
“What about you, kiddo?”
“I guess it has something to do with human psychology. I’m not real sure, though.”
By this point there were five empty beer bottles sitting in front of Hideyuki. His conversational engine was finally getting warmed up.
“Ask yourself: what is a superstition? It’s an oral tradition that if you see something or experience something, a certain thing will happen. With a jinx it’s something bad, but of course a superstition can involve something good, or even something that can’t necessarily be categorized as good or bad. To cut to the chase, a superstition is something that connects one phenomenon with another phenomenon. Sometimes science can explain the connection. For example, the superstition that when clouds move from east to west it means it’ll rain can be explained very easily by modern meteorology. There are others that you can understand intuitively, like the one that says being photographed takes years off your life. Or ones about breaking chopsticks or sandal thongs, or seeing black