Blue Mars
Sax wandered over the fractured plain, distraught— distraught at the loss of a friend 153 years before. Sometimes it seemed there was no such thing as time.
• • •
Then he stopped short, brought back to the present by the sight of life. Small white rodents, sniffing around on the green of a sunken meadow. They were no doubt snow pika or something like, but in their whiteness they looked enough like lab rats to give Sax a start. White lab rats, yes, but tailless— mutant lab rats, yes— free at last, out of their cages and into the world, wandering over the intense green meadow grass like surreal hallucinatory objects, all ablink and sniff-whiskered as they checked out the ground between grass clumps for tasties. Munching away on seeds and nuts and flowers. John had been greatly amused at the myth of Sax as the hundred lab rats. Sax’s mind, now free and scattered. This is our body.
He crouched and watched the little rodents until he got cold. There were greater creatures out on that plain, and they always stopped him short: deer, elk, moose, bighorn sheep, reindeer, caribou, black bear, grizzly bear— even packs of wolves, like swift gray shadows— and all to Sax like citizens out of a dream, so that every time he spotted even a single creature he felt startled, disconnected, even stunned; it did not seem possible; it was certainly not natural. Yet here they were. And now these little snow pika, happy in their oasis. Not nature, not culture: just Mars.
He thought of Ann. He wanted her to see them.
He often thought of her these days. So many of his friends were dead now, but Ann was alive, he could still talk to her, it was at least possible. He had looked into the matter, and found that she now lived in the caldera of Olympus Mons, as part of the small community of red climbers that occupied it. Apparently they took turns in the caldera, to keep the population low despite the big holes’ steep walls and primeval conditions, both so attractive to them. But Ann stayed as long as she liked, Sax had heard, and only left infrequently. This was what Peter had told him, although Peter had only heard it secondhand. Sad how those two were estranged; pointless; but family estrangements seemed to be the most intransigent of all.
Anyway, she was on Olympus Mons. Therefore almost in sight, just over the horizon to the south. And he wanted to talk to her. All his reflections on what happened to Mars, he thought, were framed as an internal conversation with Ann. Not so much as an argument, or so he hoped, but as an endless persuasion. If he could be so changed by the reality of blue Mars, could not Ann as well? Was it not almost inevitable, even necessary? Might it have already happened? Sax felt he had come over the years to love what Ann loved in Mars; and now he wanted her to reciprocate, if possible. She had become for him, in a most uncomfortable way, his measure of the worth of what they had done. The worth, or the acceptability. It was a strange feeling to have settled in him, but there it was.
Another uncomfortable lump in his mind, like the suddenly rediscovered guilt about John’s death, which he would try again to forget. If he could blank out on the interesting thoughts he ought to be able to blank out on the awful ones, oughtn’t he? John had died, and nothing Sax could have done would have prevented it. Very probably. There was no way to say. And no way to go back. John had been killed and Sax had failed to help him; and here they were, Sax alive and John dead, nothing now but a powerful node-and-network system in the minds of all the people who had known him. And nothing to be done.
But Ann was alive, up there climbing the caldera walls of Olympus. He could talk to her if he wanted. Although she would not come out. He would have to hunt her down. But he could do it, that was the thing. The real sting of John’s death lay in the death of that chance; he could no longer talk to him. But he could still talk to Ann, the chance existed.
• • •
Work on the anamnestic package continued. Acheron was a joy that way: days in the labs, talking with the lab directors about their experiments and seeing if he could help. Weekly seminars, where they got together in front of the screens and shared their results, and talked about what they meant and what they might try next. People interrupted their work to help with the farm, or do other business or go on trips; but others were there to fill in, and when people came back they often had new ideas, and always had a new charge of energy. Sax sat in the seminar rooms after the weekly roundups, looking at the coffee cups and the rings of brown coffee and black kava stains on the battered wooden tabletops, the white shiny blackboard screens covered with schemata and chemical diagrams and big looping arrows pointing to acronyms and alchemical symbols that Michel would have loved, and something inside him would glow till it hurt, some parasympathetic reaction spilling out of his limbic system— now thiswas science, by God, this was Martian science, in the hands of the scientists themselves, working together for some collective goal that made sense, that was for the common good; pushing at the edge of what they knew, theory and experiment bouncing back and forth like a blur of Ping-Pong balls, week after week finding out more, going after more, extending the great invisible parthenon right out into the uncharted territory of the human mind, into life itself. It made him so happy that he almost didn’t care if they ever figured things out; the search was all.
But his short-term memory was damaged. He was experiencing blank-outs and tip-of-the-tongueism every day; sometimes in the seminars he had to stop midsentence, almost, and sit down and wave at the others, asking them to go on; and they would nod and the person at the blackboard would continue. No, he needed the solution to this one. There would be other puzzles to pursue afterward, without any doubt; the quick decline itself, for instance, or any of the rest of the senescence problem. No, there was no lack of the unexplainable to work on, and never would be. Meanwhile, the problem of the anamnestic was hard enough.
The outlines of it were coming clear, however. One part of it would be a drug cocktail, a mixture of protein-synthesis enhancers, including even amphetamines and chemical relatives of strychnine, and then transmitters like serotonin, glutamate receptor sensitizers, cholinesterase, cyclic AMP, and so on. All of these would be there to help in different ways to reinforce the memory structures when they were rehearsed. Others would be included from the general brain plasticity treatment that Sax had received in the period following his stroke, at much smaller doses. Then it seemed from the experiments in electrical stimulation that a stimulus shock, followed by a continuous oscillation at very rapid frequencies phased with the subject’s natural brain waves, would serve to initiate the neurochemical processes augmented by the drug package. After that subjects would have to direct the work of remembering as best they could, perhaps moving from node to node if possible, with the idea that as each node was recalled, the network surrounding the node would then be flushed by the oscillations and reinforced accordingly. Moving from room to room in the theater of memory, in essence. Experiments with all these various aspects of the process were being run on volunteer subjects, often the young native experimenters themselves; they were remembering a great many things, they said with a kind of stunned awe, and the overall prospect was looking more and more promising. Week by week they honed their techniques, and homed in on a process.
For the work of recollection to best succeed, it was becoming clear from the experiments that context was an important component. Lists memorized underwater in diving suits could be recalled much better when the subjects returned to the seafloor than when they tried to remember them on land. Subjects hypnotically induced to feel happy or sad during memorization of a list were better at remembering the list when again hypnotized to feel happy or sad. Congruence of items in the lists helped, as did returning to rooms of the same size or color when remembering them. These were of course all very crude experiments, but the link between context and power of recollection was demonstrated by them strongly enough to cause Sax to think hard about where he might want to try the treatment when they finalized it; where, and with whom.
For the final work on the treatment Sax called up Bao Shuyo and asked her to come join them in
Acheron for some consulations. Again, her work was much more theoretical, and very much more fine-grained, but after her work with the fusion group in Da Vinci, he had a healthy respect for her ability to help in any problem that involved quantum gravity and the ultramicrostructure of matter. Just to have her run through what they had done and comment on it would be valuable, he was sure.
Unfortunately, Bao’s obligations in Da Vinci were heavy, as they had been ever since her much-heralded return from Dorsa Brevia. Sax was put in the unusual position of manipulating his home labs in order to extricate one of their best theorists, but he did it without compunction, getting Bela’s help to put the arm on the current administration, to twist their arms as hard as ever he could. “Ka, Sax,” Bela exclaimed during one call, “I never would have guessed that you would turn out to be such a fierce headhunter.”
“It’s my own head I’m hunting,” Sax replied.
Usually tracking someone down was as simple as contacting their wristpad, and looking to see where the person was. Ann’s wristpad, however, had been left on the rim of the Olympus Mons caldera, at the descent station near the festival grounds at Crater Zp. This struck Sax as peculiar, since they had worn wristpads of some kind or another since the very beginning in Underhill, Ann as much as anyone, as he recalled. Hadn’t she? He called Peter to ask, but Peter did not know, of course, having been born well after the Underhill years. In any case, to go without a wristpad now was to borrow a behavior from the neoprimitive nomads wandering the canyonlands and the North Sea coast— not a lifestyle he would have expected Ann to take any interest in. One couldn’t live in anything like the Paleolithic style up on Olympus Mons, indeed it required the kind of continuous technological support that was no longer necessary in most places, with wristpads an integral part of it. Perhaps she only wanted to get away. Peter didn’t know.
But he did know how to contact her: “You have to go in and find her.”
At Sax’s expression he laughed. “It isn’t so bad. There’s only a couple hundred people in the caldera, and when they’re not staying in one of their huts, they’re on the cliff walls.”
“She’s become a climber?”
“Yes.”
“She climbs for— for recreation?”
“She climbs. Don’t ask me why.”
“So I just go look at all the cliffs?”
“That’s how I had to do it when Marion died.”
• • •
The summit of Olympus Mons had for the most part been left alone. Oh there were a few low boulder hermitages on rim overlooks, and a piste had been built on the northeast lava flow that broke the escarpment ring surrounding the volcano, for easy access to the festival complex at Crater Zp; but other than that, there was nothing to show what had happened to the rest of Mars, which from the rim of the caldera was entirely invisible, under the horizon of the encircling escarpment. From its rim Olympus Mons appeared to be the world entire. The local Reds had decided against putting a protective molecular dome over the caldera, something they had done over Arsia Mons; so no doubt there were bacteria, and perhaps some lichens that had blown over on winds and floated down into the caldera and survived; but at pressures little higher than the original ten millibars, they were not going to flourish. Probably the survivors were mostly endochasmoliths, so there would be no sign of them. It was a lucky thing for the Red project that Mars’s stupendous vertical scale kept air pressures so low on the big volcanoes; a free and effective sterilization technique.
Sax took the train up to Zp, and then a car on up to the rim, a taxi van driven by the Reds who controlled access into the caldera. The car came to the edge of the rim, and Sax looked down.
The caldera was multiringed, and big: ninety kilometers by sixty, about the same size as Luxembourg, Sax recalled hearing. The main central circle, by far the largest, was marred by overlapping smaller circles to the northeast, center, and south. The southernmost circle cut in half a slightly older, higher circle to the southeast; the meeting of these three arcuate walls was considered one of the finest climbing areas on the planet, Sax was told, with the greatest height anywhere in the caldera, a drop from 26 kilometers above the datum (they used the old term rather than sea level) down to 22.5 kilometers on the southernmost crater floor. A ten-thousand-foot cliff, the young Coloradoan in Sax mused.
The floor of the main caldera was marked by a great number of curving fault patterns, concentric with the caldera walls: arcing ridges and canyons, across which ran some straighter escarpments. These features were all explicable, they had been caused by recurrent caldera collapses following the sideslope drainage of magma from the main chamber under the volcano; but as he looked down from their perch on the rim, it seemed to Sax a mysterious mountain— a world of its own— nothing visible but the vast embayed rim, and the five thousand square kilometers of the caldera. Ring on ring of high curved walls and flat round floors, under a black starry sky. Nowhere were the encircling cliffs less than a thousand meters tall. As a rule they were not completely vertical; their average slope appeared to be just steeper than forty-five degrees. But there were steeper sections all over the place. No doubt the climbers flocked to the very steepest sections, given the nature of their interest. There looked to be some very vertical faces out there, even an overhang or two, as right under them, over the confluence of the three walls.
OLYMPUS MONS CALDERA
• • •
“I’m looking for Ann Clayborne,” Sax said to the drivers, who were rapt with the view. “Do you know where I could find her?”
“You don’t know where she is?” one asked.
“I’ve heard she’s climbing in the Olympus caldera.”
“Does she know you’re looking for her?”
“No. She’s not answering her calls.”
“Does she know you?”
“Oh yes. We’re old— friends.”
“And who are you?”
“Sax Russell.”
They stared at him. One said, “Old friends, eh?”
Her companion elbowed her.
They called the spot they were at Three Walls, sensibly enough. Directly under their car, on a little slump terrace, there was an elevator station. Sax peered at it through binoculars: outer-lock doors, reinforced roofing— it could have been a structure from the early years. The elevator was the only way down into this part of the caldera, if you did not care to rappel.
“Ann resupplies at Marion Station,” the elbower finally said, shocking her codriver. “See it, there? That square dot, where the lava channels from the main floor cut down into South Circle.”
This was on the opposite rim of the southernmost circle, which Sax’s map named “6.” Sax had trouble making out any square dot, even with the binocular’s magnification. But then he saw it— a tiny block just a bit too regular to be natural, although it had been painted the rusty gray of the local basalt. “I see it. How do I get there?”
“Take the elevator down, then walk on over.”
• • •
So he showed the elevator attendants the pass the elbower had given him, and took the long elevator ride down the wall of South Circle. The elevator ran on a track affixed to the cliffside, and it had windows; it was like dropping in a helicopter, or coming down the last bit of the space elevator over Sheffield. By the time he got down to the caldera floor it was late afternoon; he checked into the spartan lodge at the bottom and ate a big leisurely dinner, thinking from time to time what he might say to Ann. It came to him, slowly: a coherent and it seemed convincing self-explication, or confession, or cri de coeur, piece by piece. Then to his great chagrin he blanked the whole thing. And there he was on the floor of a volcanic caldera, the blinkered circle of sky dark and starry above. On Olympus. Searching for Ann Clayborne, with nothing to say to her. Very chagrined.
The next morning after breakfast, he pushed his way into a walker. Although the materials were improved, the elastic fabric necessarily clasped the limbs and torso just as
tightly as their old suits had. Strange how the kinetics of it evoked trains of thought, flashes of memory: the look of Underhill as they were building the foursquare dome; even a kind of somatic epiphany, which seemed to be a recollection of his very first walk out of the landing craft, with the surprise of the close horizons and the textured pink of the sky. Context and memory, again.
He walked out across the floor of South Circle. This morning the sky was a dark indigo very near black— marine blue, the chart said, an odd choice of name considering how dark it was. Many stars were visible. The horizon was a round cliff, rising on all sides: the southern semicircle three kilometers tall, the northeast quadrant two kilometers, the northwest quadrant one kilometer only, and shattered. Astonishing sight, actually— the roundness of it. Thermodynamics of cooling rock in magma chambers, magma throats. Out in the middle the encircling walls were a dizzying sight. The walls looked much the same height in all directions, a textbook example of foreshortening’s ability to telescope the perception of vertical distances.