The Road That Was Never There

The power had been out for an hour, and Gran had given up and gone to bed, so the only light in the kitchen came from two candles and the laptop, which was down to forty percent.

"It's a free thing," Maya said. "Anybody can look. They put the elephant tracks online so people stop being weird about where the elephants go."

"How does it know it's the same elephant?" Soren asked. He had the notebook open but had not written anything yet.

"It doesn't tag them. That's the whole point." Maya turned the screen so he could see. "The satellite takes the picture. Then the AI looks at like ten years of pictures and finds the same animal moving. By its shape, its shadow, how it walks. It stitches the dots into a line."

The map showed a continent in gray, and over it, thin glowing threads. Some were thick where many animals had gone. Some were single and faint.

"Researchers didn't draw these," Maya said. "Nobody walked these. The computer found them out of pictures from space."

"So these are roads," Soren said. "Animal roads that nobody knew were roads."

"Corridors. Yeah."

He leaned in. "What are the red ones?"

Maya scrolled. There were red threads too, mixed in with the glowing ones, and a little tag floated beside each one.

"Flagged," she read. "It flags some of them. Look." She clicked. "Anomaly. The corridor crosses human infrastructure."

"Like a city?"

"Like a highway. A dam. A fence. A pipeline." She zoomed in on one red line. It ran straight across a four-lane road, the kind that should have stopped anything. The thread did not bend. It went over the road and kept going.

"Maybe it's old," Soren said. "Maybe the animals went that way before the road was built and the AI is just remembering."

"That's a good guess," Maya said, and meant it. "But look at the dates."

The candle dripped. Soren put his finger on the screen, on the years.

"They're still doing it," he said slowly. "Last year. This year. The road's been there forty years and they still cross at exactly that spot."

"Same spot every time. Not a mile up. Not a mile down. There."

Soren wrote one line in the notebook. Then he stopped and looked at the red thread.

"Okay," he said. "So the computer is good enough to find a road nobody mapped. It can find a single elephant in a picture taken from space. It's not making a mistake about the crossing."

"No."

"And it flagged it. Which means somebody told it, hey, when an animal does something that doesn't make sense, tell us."

"And it told us," Maya said. "It says anomaly. It says cannot determine cause."

They both looked at that part. The AI had a confidence number for almost everything. The shape of the animal. The direction. The age of the trail. For the crossing it had a blank where the number should be.

"It knows that it doesn't know," Soren said.

Maya sat back. "That's the part that gets me. It's not confused. Confused would be easy. It's sure about everything except the one thing."

"Why would they keep using it," Soren said. It wasn't a question anymore, just the thing turning over. "It's dangerous. It's loud. There are easier ways around. The AI can see the easier ways around. It can measure them. The easy way is right there and they don't take it."

"Maybe the easy way isn't easy for a reason we can't see," Maya said. "Maybe there's water under that exact spot. Or the ground is firmer. Or it's where their mothers crossed, and their mothers, going back further than the road, further than forty years."

"Going back to before there was anything there to cross."

They were quiet. Outside, far off, they could hear the real highway, the one past Gran's field, a low river of sound that never stopped.

Maya clicked on another red thread, on the other side of the world. A different animal. Caribou. The line crossed a pipeline and kept going. Cannot determine cause. She clicked another. Wildebeest, a fence, a railway. Cannot determine cause. Every red flag said the same blank thing.

"It's everywhere," she said. "It's not one weird elephant. It's all of them. Everywhere there's a wall, some of them go through the same gap in the wall, and the gap isn't a gap, it's just the place they've always crossed, and they cross it anyway."

Soren was writing faster now.

"Here's what's wild," he said. "We only know this because the machine is better than the people. A person flying over would see an elephant on a road and think, huh, weird elephant. They'd never know it was the same crossing for forty years. They'd never know it was happening on six continents at once. The machine held all of it at the same time. That's why it could even ask the question."

"It built the whole map just so it could find the one thing it can't explain," Maya said.

"And then it handed the thing it can't explain to us."

Maya looked at him in the candlelight. "You know what that means."

"What."

"It means the question is just sitting there. Right now. Nobody's answer is in the computer. Whoever figures out why the animals cross at exactly that spot, it isn't in there yet. It's not anywhere yet."

Soren stopped writing.

"It's the kind of thing," he said, "that an adult would tell you was already solved. And it's not."

"It's a blank where the number should be," Maya said. "On six continents."

The laptop blinked. Thirty percent. The map of glowing threads sat there, the red flags scattered across it like small fires, each one marking a place where animals walked straight into the thing that should have stopped them and came out the other side, year after year, for reasons that were not written down anywhere on Earth.

Maya leaned toward the screen and traced one red thread with her finger, following it across the dark continent until it ran off the edge of the map and the map had no more to show.

The highway past Gran's field kept up its low sound. Soren turned the laptop a few degrees so the light fell on the notebook, and started a new page.