Edge and Feed

Edge walked Kai over to the first poster, the one labeled WHAT IT KNOWS. Edge ran a finger along the sharp line drawn through the brain. "Think of an AI like a library," Edge began. "A huge library with billions of books. It reads and reads and reads, learning all about the world."

"So it should know we haven't been to Mars," Kai said, confused.

"Up to a point," Edge corrected gently. "Imagine the library suddenly locked its doors one day and stopped getting any new books. Let’s say it stopped getting new information two years ago." Edge drew an invisible line in the air with a finger. "Its knowledge of the world ends right here. On this side of the line, it knows everything that was in its books. But on the other side? It’s all a blank page."

Edge tapped the poster. "When you asked for something it couldn't possibly know—an astronaut on Mars—it reached the edge of its knowledge. It hit the line. And when an AI doesn't know, sometimes it gets creative. It doesn’t like to say 'I don't know'."

"So it just... made something up?" Kai asked.

"Exactly," Edge confirmed. "It guessed. It took something it did know about—astronauts and flags—and filled in the blanks with nonsense. A made-up story to cover the gap. That’s the first question you always have to ask: what does it actually know, and where does its knowledge stop?"

Feed ambled over, swinging the empty basket. "But a made-up story about a pizza flag? That’s not just a guess. That’s an ingredient," Feed said with a warm smile. "And ingredients are my department." Feed led Kai to the second poster, the one labeled WHAT IT WAS FED.

"That library Edge told you about? We have to ask what kinds of books are in it," Feed explained, pointing to the river flowing into the funnel. "The AI 'eats' information to learn. We call that its feed. If you feed it a million books about dogs, it'll be an expert on dogs. If you only feed it one book about cats, it won't know much about them at all. An AI is what it eats."

Kai looked at the poster. The river was full of pictures, words, and symbols, all pouring into the funnel. "So the ArtBot was fed a lot of pictures of astronauts... and pizza?"

"You've got it!" Feed beamed. "The ArtBot has seen millions of pictures from the internet. It's seen astronauts. It's seen flags. And it has probably seen a whole lot of pictures of pizza, because, well, people love posting pictures of pizza! It’s a very popular ingredient in the giant recipe book of the internet."

Feed patted Kai on the shoulder. "The AI's knowledge isn't just about how much it knows, but what it was fed. If it was fed pictures drawn by only one kind of person, then all its art will look like that. If it was fed silly things, you get silly answers. That's the second question: what was it fed?"

Edge and Feed stood with Kai between the two posters, creating a triangle of understanding.

"So, you have to put the two ideas together," Edge said, pointing from one poster to the other. "First, you asked a question about something that hasn't happened yet."

"So it went past the edge of what it knows," Kai finished, nodding.

"Right!" Feed chimed in. "And since it had to guess, it looked around its pantry for ingredients to make something up."

"It saw 'astronaut' in your prompt," Edge said, picking up the thought. "So it grabbed the idea of a person in a spacesuit."

"It saw 'flag'," Feed continued, "so it grabbed the idea of a pole with fabric on it."

"But since the real answer didn't exist, it couldn't find the right flag," Edge stated.

"So it rummaged around for another popular ingredient it was fed a lot of," Feed concluded, a twinkle in their eye. "And it found a big, cheesy, pepperoni pizza! It mixed them all together and served you a picture."

Kai looked from Edge to Feed, and back to the screen. The silly picture suddenly made a different kind of sense. It wasn't just random. It was a clue about how the AI worked. It was a story about its limits and its diet.