Extinction by Mark Alpert

the brain’s signals into digital code, allowing anyone to download the contents of his mind into a computer. “Just think of it!” Arvin would shout after his third scotch and soda. “We won’t be tied to these fragile bodies anymore! If we can store a person’s memories in a sufficiently powerful processor, we can program it to generate new thoughts based on those memories. For all intents and purposes, the intelligence inside the processor would be identical to the one inside the person’s brain. And this will become possible very soon, within the next few decades. There are people alive today who will never die!”
    Jim always took these pronouncements with a big grain of salt. He knew that scientists had barely begun to explore the human brain, and he couldn’t imagine how a computer could come close to matching it in his lifetime. Nevertheless, Arvin’s speeches were inspiring. Jim threw himself into the work, and after a few years he and Arvin had their first great success, the development of the retinal implant. It was the first machine that could exchange large amounts of information with the brain, and Arvin confidently predicted there would be many more.
    But further progress didn’t come easily. While Jim focused on his prostheses, Arvin tackled the biggest challenge: building a computer that could mimic all the brain’s functions, everything from visual processing and speech recognition to motor control and decision making. He worked on the project for years, but ultimately all his efforts fell short. Although he could assemble a machine that, like the brain, had billions of logic gates and trillions of connections, he couldn’t reproduce the brain’s remarkable plasticity, its ability to rewire itself to accommodate new information, constantly strengthening and weakening the links between nerve cells. The failure disheartened Arvin. He became depressed and irritable.
    At the same time, Jim started to think about establishing his own business. Thousands of maimed soldiers were returning from Iraq and Afghanistan, and he felt an obligation to make his prostheses available to them. But when he told Arvin about his plans to move back east and start a company that would custom-design prostheses for the amputees at Walter Reed, the old man was livid. “You’re breaking your promise!” Arvin had yelled. “You’re giving up!” Their argument escalated into a shouting match, nasty and loud. The memory of it still made Jim wince, even four years later. It spoiled all his earlier, fonder memories.
    Now they came to the ugly metal desk at the center of the lab. Arvin slumped in his chair, looking exhausted. His cheerful arrogance was gone. “I don’t blame you for hating me,” he said, staring at the floor. “I hate myself right now.”
    “Look, you need to tell me what—”
    “I know, I know. You’re worried about Layla. They told me you’d come here and try to talk to me.”
    Jim was confused. “Told you? Who told you?”
    “My handler. Or sometimes he calls himself a liaison. A Liaison to the Powers That Be, he says.” Arvin grimaced. “But I know who he works for. He’s CIA.”
    There it is, Jim thought. The Guoanbu document he’d viewed on Kirsten’s computer had been right on the money. “What’s your handler’s name?”
    “He won’t tell me. He says I don’t need to know. The only thing I need to know, he says, is that he’ll arrest me if I don’t keep my mouth shut. That’s why I was avoiding you.”
    Jim gritted his teeth. He’d met plenty of CIA agents when he’d worked for the National Security Agency, and he’d disliked nearly all of them. The cowboys from Langley had no respect for anyone else in the intelligence community. They always insisted on doing things their own way, even when they were horribly wrong.
    “Did he also tell you that Layla’s in danger? And that a Chinese spy almost drilled through my left arm to find out where she was?”
    “He said he had