Something about what Alisaie is saying clicks in Jack's mind, and his eyes go wide. "Ohhh. Oh." Understanding, of something. "It's like-" waving a hand as if trying to pull the words that he's looking for out of the air.

"You get enough focused belief of a group of people funneled through something powerful enough to channel that belief into reality? A telepathic effect that starts very weak can grow stronger as people's belief in it grows. Can even pull things across from one reality into another. I've seen similar effects before." Now it's like the ideas are racing through Jack's mind and out his mouth, he's talking so quickly. "But once that belief gets a form?" Pause.

"Then what? What's the purpose of them?"