He paused, as if waiting for Caitlin or her mom to chime in with what that advantage might be. After a moment, he went on, his voice triumphant: “And that advantage must be consciousness, must be the unification of sensory input to produce a single perspective, a single point of view.”
“But I was born blind,” said Caitlin, letting her fingers rest. “And I’ve been conscious my whole life without the sharing of sight across both hemispheres.”
“True, but your brain was hardwired for it regardless. I’ve seen your MRIs, remember—you’ve got a perfectly normal brain; the only flaw you were born with was in your retinas. Anyway,” he said, and she resumed typing, “evolution went out of its way to make sure we’ve only got one perspective, one point of view. A bird can’t fly both left and right at the same time; a person can’t think about both this and that at the same time. Consciousness is singular. It’s cogito ergo sum, I think, therefore I am; it’s not cogitamus ergo sumus—it’s not we think, therefore we are. Even in cases of a severed corpus callosum, the brain still retains its single perspective; again, evolution has gone out of its way to make sure that unitary consciousness survives even something as traumatic as cutting the major communications trunk between the hemispheres.”
Caitlin’s mom looked at her but said nothing. Dr. Kuroda went on. “And it’s not just that a directional perspective gives rise to your own consciousness; it also gives rise to your awareness that others have consciousness, too. It’s what’s called theory of mind: the recognition that other people have beliefs, desires, and intentions of their own, and that those might be different from yours. And, again, that comes from you having a single point of view.”
“How so?” asked Caitlin’s mom.
“It’s only because you have a limited perspective that you understand that the person facing you must be seeing something completely different from what you’re seeing as you face him. Are you in Miss Caitlin’s room now?”
“Yes,” said her mom.
“Well, if we were facing each other there, you might be seeing the window and the outside world, and I might be seeing the door and the hallway beyond—not only are we seeing completely different things, but you understand that we are. Your limited perspective lets you know that my point of view is different. And there are those terms again: ‘perspective, ’ ‘point of view’! Thought and vision are inexorably connected in our brains.”
“But what about blind people?” asked Caitlin, taking another break from typing.
“Again, you don’t actually need the vision, just the neural infrastructure geared for a single point of view.” He paused. “Look, if having eyes in the back of our heads really was an improvement, we’d have them. Mutants with extra eyes are born periodically today, and probably have been throughout vertebrate history—and if that had conferred a survival advantage, the mutation would have spread. But it didn’t. Having one point of view—having consciousness and being able to understand that what the predator sees is different from what you see—trumps even being able to see things approaching you from behind.”
Caitlin was wrestling with the implications of this, but it was her mother who got it first. “And Webmind sees through Caitlin’s eye, right? Caitlin is his window on our world.”
Caitlin found herself looking down, pleased but a tad embarrassed that the conversation had suddenly come around to her, and—
And she saw what Webmind had written at the end of her transcript of Kuroda’s comments, glowing blue: You really did uplift me. You gave me the perspective and point of view and focus I needed to become truly conscious. Without you, I wouldn’t exist.
Caitlin looked up and allowed herself a warm, satisfied smile. “Go me!” she said.
thirteen
“What the hell happened?” demanded Tony Moretti. He was standing at the side of the WATCH mission-control room again. Peyton Hume was next to him, somewhat higher up on the sloping floor; although he was shorter than Tony, they were now seeing eye to eye.
Shel Halleck was back at his workstation in the third row. “I’m not sure,” he called out. “There was a sudden surge in traffic associated with the AI, and then it just froze. And Caitlin Decter—or someone in her house—kept sending it IMs saying it should ‘break the links.’ ”
“Why?” asked Tony.
“I’m not sure,” Shel said again.
“I’m getting tired of hearing that,” Tony snapped. In fact, he was getting tired, period.
“There seem to be limits to its processing capacity,” Peyton Hume offered. “That suggests at least some models of how it might be composed—and eliminates some other ones. In fact…”
“Yes?” said Tony.
“Well,” the colonel said, “remember what the Chinese did last month? I don’t mean the slaughter; I mean how they tried to keep word about it from getting out. They cut off almost all communication with the outside world for several days, including the Internet. Perhaps it’s not a coincidence that the cleaving then reunification of so large a part of the Internet preceded the emergence of this entity. That suggests there’s a critical threshold of components required to keep it going—and that at least some of them are in China.”
“All right,” said Tony. “It’s a lead, anyway. Shel, Aiesha, let’s find out precisely where the damned thing resides. If the president does give the kill order, I want us to be ready to implement it at once.”
Shoshana stared in astonishment across the little dome-shaped island until Hobo had disappeared from view.
The back of her head still hurt. She patted it again to see if the bleeding had stopped; it hadn’t. Hobo was much stronger than she, and an angry ape was not to be taken lightly. But she loved him and cared about him and was worried about him, and he’d never hurt her—or anyone—before.
She had her cell phone with her, and could call Dr. Marcuse if need be. And if Hobo did come chasing after her, all she had to do was dive into the circular moat around the island; Hobo couldn’t swim.
She started walking, but rather than crossing the island, as Hobo had done, she strode along its perimeter, keeping close to the water in case she needed to escape. He’d gone right past the gazebo at the top of the island mound—she’d seen that much. He could be on the ground, or he could have shinnied up one of the palm trees; he didn’t do that often, though.
She continued on for another dozen paces—and there he was, sitting on his scrawny rump, leaning his back against the trio of rolled-up stone scrolls at the base of the Lawgiver statue.
Hobo, she signed. He looked at her, said nothing, then looked away.
Which meant she couldn’t talk to him. She clapped her hands together—he wasn’t deaf, after all, even if he used a language devised for those who were. He turned his head to look at the source of the sound.
Hobo, she signed again. Are you okay? Can I help?
He made no reply.
She stepped closer. Please, Hobo. Worried about you.
Suddenly he sat up straight, and Sho, startled by the movement, felt her own back tense. And then, all at once, he was in motion, a blur of black fur. She pulled back a half pace, but Hobo was not going out but up, clambering up the eight-foot-tall statue of the Lawgiver, until he was high on the faux orangutan’s shoulders, hooting and panting at the sun.