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Konev looked up sharply and almost responded - then, as though realizing who had said it, he subsided.

Morrison said, trying not to sound mocking, "Did you get that, too, Yuri?"

Konev nodded. "At almost the same time."

"That's the first crossover between a man and woman," said Morrison. "I suppose Shapirov had his mind on it in connection with his extension of miniaturization theory."

"Undoubtedly. But his Nobel Prize was sure for what he had already done in miniaturization."

"Which is classified and therefore unknown."

"Yes. But once we perfect the process, it will no longer be unknown."

"Let's hope so," said Morrison sardonically.

Konev snapped, "We are no more secretive than you Americans."

"All right. I'm not arguing," but Morrison grinned broadly at Konev, who was peering over his shoulder at him, and that seemed to irritate the younger man even further.

At one point, Dezhnev said, "'Hawking.'"

Morrison's eyebrows lifted in surprise. He had not expected this.

Boranova said, looking displeased, "What is this, Arkady?"

"I said, 'Hawking,'" said Dezhnev defensively. "Out of nowhere it popped into my mind. You told me to tell you anything that did."

"It is an English word," said Boranova, "that means 'spitting.'

"Or 'selling,'" said Morrison cheerfully.

Dezhnev said, "I don't know enough English to know that word. I thought it was someone's name."

"So it was," said Konev uncomfortably. "Stephen Hawking. He was a great English theoretical physicist of over a century ago. I was thinking of him, too, but I thought it was my own thought."

Morrison said, "Good, Arkady. That might be useful."

Dezhnev's face split with a grin. "I'm not altogether useless, then. As my father used to say: 'If the words of a wise man are few, they are nevertheless worth listening to.'"

An interminable half hour later, Morrison said gently, "Are we getting anywhere at all? It seems to me that most of the phrases and images tell us nothing. 'Nobel Prize' tells us, reasonably enough, that Shapirov thought of winning one, but we know that. 'Hawking' tells us that that physicist's work was significant, perhaps, in connection with the extension of miniaturization, but it doesn't tell us why."

It was not Konev who rose to the defense, as Morrison would have expected, but Boranova. Konev, who might have been readying himself for a response, seemed willing, on this occasion, to let the captain bear the weight.

Boranova said, "We are dealing with an enormous cryptogram, Albert. Shapirov is a man in a coma and his brain is not thinking in a disciplined or orderly fashion. It is sparking wildly, those parts of it that remain whole, perhaps randomly. We collect everything without distinction and it will all be studied by those of us with a deep understanding of miniaturization theory. They may see meaning where you see none. And a bit of meaning, in one corner of the field, may be the start of an illumination that will spread to all parts of it. What we are doing makes sense and it is the proper thing to do."

Konev then said, "Besides, Albert, there is something else we can try. We are approaching a synapse. This axon will end eventually and split up into many fibers, each of which will approach but not join with the dendrite of a neighboring neuron."

"I know that," said Morrison impatiently.

"The nerve impulse, including the skeptic waves, will have to jump the tiny gap of the synapse and, in doing so, the dominant thoughts will be less attenuated than the others. In short, if we jump the synapse, too, we will reach a region where we may, for a while at least, detect what we want to hear with less interference from trivial noise."

"Really?" asked Morrison archly. "This notion of differential attenuation is new to me."

"It's the result of painstaking Soviet work in the area."

"Ah!"

Konev fired up at once, "What do you mean, 'Ah!'? Is that a dismissal of the value of the work?"

"No no."

"Of course it is. If it's Soviet work, it means nothing."

"I just mean that I haven't read or heard anything about it," Morrison said in defense."

"The work was done by Madame Nastiaspenskaya. I presume you've heard of her."

"Yes, I have."

"But you don't read her papers, is that it?"

"Yuri, I can't keep up with the English-language literature, let alone with -"

"Well, when this is over, I'll see that you get a collection of her papers and you may educate yourself."

"Thank you, but may I say that on the face of it I think the finding is an unlikely one. If some types of mental activity survive a synapse better than others, then, considering that there are many hundreds of billions of synapses in the brain, all constantly in use, the final result would be that only a tiny proportion of thoughts would survive at all."

"It's not as simple as that," said Konev. "The trivial thoughts are not wiped out. They continue at a lower level of intensity and don't decline indefinitely. It's just that, in the immediate neighborhood of a synapse, the important thoughts are, for a time, relatively strengthened."

"Is there evidence for this? Or is it only a suggestion?"

"There's evidence of a subtle nature. Eventually, with miniaturization experiments, that evidence will be hardened, I'm sure. There are some people among whom this synapse effect is much stronger than average. Why else can creative individuals concentrate so hard and so long, if they are not less distracted by trivia? And why, on the contrary, are brilliant scholars traditionally absentminded?"

"Very well. If we find something, I won't quarrel with the rationale."

Dezhnev said, "But what happens when we come to the end of the axon? The stream of fluid we're riding will just make a U-turn at that point and carry us back again against the opposite wall of the axon. Do I force my way through the membrane?"

"No," said Konev. "Of course not. We'd damage the cell. We'll have to take on the electric charge pattern of acetylcholine. That carries the nerve impulse pattern across the synapse."

Boranova said, "Sophia, you can give the ship an acetylcholine pattern, can't you?"

"I can," said Kaliinin, "but aren't the acetylcholine molecules active on the outside of the cell?"

"Nevertheless, the cell may have a mechanism for ejecting them. We'll try."

And the trip along the seemingly endless axon continued.

64.

Suddenly the end of the axon was in sight. There was no hint, no warning. Konev noticed it first. He was watching and he knew what he was watching for, but Morrison gave him full credit. He himself was watching, too, and knew what he was watching for, and yet did not see it when it came.

To be sure, Konev was in the front seat, while Morrison had to stare past Konev's head. That was not much of an excuse either.

In the curiously ineffective light of the ship's beacon, it was clear that there was a hollow ahead and yet the current was beginning to veer away from it.

The axon was beginning to break off into branches, into dendrites like those at the other end of the neuron, at the end where the nucleated cell body was. The axonian dendrites at the far end of the cell were fewer and thinner, but they were there. Undoubtedly, a portion of the cellular stream flowed into it, but the ship was in the main stream that curved away and they could take no chances.

They would have to push into the first dendrite encountered - if it could be done.

"There, Arkady, there," cried Konev, pointing, and it was only then that all the rest realized they were reaching the end of the axon. "Use your motors, Arkady, and push over."