The Ostrich That Was a School Bus

The tablet was older than both of them, and it took its time. Maya held a photo of her bike up to the camera, and after a long thinking pause the app announced, in friendly green letters, BICYCLE, ninety-six percent.

"Show off," Soren said.

They had been at it for twenty minutes. Spoon, ninety-nine percent. Soren's left shoe, RUNNING SHOE, ninety-one. A potted plant, FLOWERPOT, then HOUSEPLANT when Maya turned it. The app almost never missed.

Then Soren pointed it at the poster taped above the recycling bins, the one the city had printed for a school safety week. A yellow school bus, big and obvious, every kid in the country could draw it from memory.

The app thought. Then it said, OSTRICH. Ninety-nine percent.

Maya laughed out loud. "It does not."

"It does." Soren held it steady. OSTRICH, ninety-nine percent. He moved closer. Still ostrich. He moved back. Ostrich.

"It's the old camera," Maya said. "Smudged lens." She wiped it on her sleeve. Pointed again. OSTRICH.

She stopped laughing. That was the thing about Maya. The laugh came first, and then something underneath the laugh went quiet and alert, because a wrong answer that confident was not a mistake. A mistake is fifty-one percent. This was a machine being sure.

"Take a regular photo of the poster," she said. "With the normal camera. Then feed it that."

Soren did. Snapped the bus, opened the picture from the gallery, fed it back into the app. SCHOOL BUS, ninety-eight percent.

They looked at each other.

"So through the camera, ostrich," Soren said slowly. "From a photo, bus."

"Same poster."

Soren got out his notebook and wrote down both numbers, because he could not hold two opposite true things in his head without putting one of them down on paper. Live feed, ostrich. Still photo, bus.

Maya was already up and standing in front of the poster, nose almost touching it. "Nothing on it," she said. "No weird marks. No stickers." She ran her finger across the yellow. "It's just a bus."

That was when the man who ran the maker space wandered over with his coffee. His name was Dev and he fixed things, all kinds of things, and he was certain about most of them.

"That poster's been there for months," he said. "The app's just confused by the angle. Hold it square."

Soren held it square. OSTRICH, ninety-nine percent.

Dev frowned, set down his coffee, and took the tablet himself. He was sure he would fix it. He held it square, then flat, then close. Ostrich, ostrich, ostrich.

"Huh," Dev said. He turned the tablet over like the answer might be on the back. Then he handed it back. "Software's probably corrupted. I'll wipe it later." And he picked up his coffee and went to help someone with a drill, certain again, just about a different thing now.

But Maya was still at the poster, and something was bothering her, the way a song bothers you when one note is wrong and you can't find which one.

"Soren. The photo you took. Look at it big."

He pinched the picture open on the screen. The bus filled it. Yellow. Black windows. Then Maya took the tablet and zoomed all the way in, past where it was comfortable, into a single square of yellow paint.

It was not one color. Up close the yellow was a storm. Tiny flecks of green, of purple, of a blue so faint you'd swear you imagined it, scattered all across the surface like the smallest possible confetti.

"The printer did that?" Soren asked.

"Maybe." Maya's voice had gone fast and quiet. "Or somebody did that. On purpose. Look how even it is." The specks were not random the way a smudge is random. They had a grain to them, a pattern too small for an eye to catch from any normal distance, woven right through the yellow.

"You can't see it," Soren said. "Standing here you see a bus. There's no possible way to see those dots."

"We can't," said Maya. "But that" she nodded at the tablet "sees nothing but those dots."

Soren felt the back of his neck go cold and bright at the same time. He looked at the poster, the plain ordinary bus, the most obvious thing in the room. He looked at the tablet, which was reading a message hidden inside the same yellow, a message addressed only to the machine, in a handwriting too tiny for people.

"It's like," he said, and stopped, because he wanted to get it right. "It's like the picture is saying two things at once. Bus to us. Ostrich to it. And both of them are completely sure."

Maya was nodding before he finished. "The dots aren't loud. Each one barely changes anything. One step brighter, one step darker." She held her thumb and finger a hair apart. "Nothing. But the machine adds them all up its own way, and they push and push until bus tips over into ostrich and it never feels itself fall."

Soren wrote that down too, fast: each dot tiny, all of them together enormous, only to the machine.

Then he stopped writing, because a thought had arrived that was bigger than the poster.

"Maya. If somebody can hide an ostrich inside a bus where only the machine can read it." He didn't finish.

"Then we don't actually know what any machine is reading," Maya said. "Cameras at crossings. Phones. The ones that read X-rays." She wasn't scared. Her eyes were doing the bright thing. "They see a whole layer we can't. Sitting right on top of ours. The whole time."

"On everything," Soren said.

"On everything."

They both turned and looked back at the poster on the wall. From here it was only a school bus, yellow and friendly and dumb, the kind of picture a kid tapes up and never thinks about again.

Dev's drill whined somewhere behind them. Saturday went on. Maya walked right up to the poster until the yellow filled her whole view, and pressed her thumb flat against one square of it, the exact square where the tablet had found an ostrich, and felt nothing but smooth, cool paper.