Genesis

by Poul Anderson

  Thus the galactic brain was in perpetual growth, which from a cosmic viewpoint had barely started. Thought had just had time for a thousand or two journeys across its ever-expanding breadth. It would never absorb its members into itself; they would always remain individuals, developing along their individual lines. Let us therefore call them not cells, but nodes.

  For they were in truth distinct. Each had more uniquenesses than were ever possible to a protoplasmic creature. Chaos and quantum fluctuation assured that none would exactly resemble any predecessor. Environment likewise helped shape the personality—surface conditions (what kind of planet, moon, asteroid, comet?) or free orbit, sun single or multiple (what kinds, what ages?), nebula, interstellar space and its ghostly tides…. Then, too, a node was not a single mind. It was as many as it chose to be, freely awakened and freely set aside, proteanly intermingling and separating again, using whatever bodies and sensors it wished for as long as it wished, immortally experiencing, creating, meditating, seeking a fulfillment that the search itself brought forth.

  Hence, while every node was engaged with a myriad of matters, one might be especially developing new realms of mathematics, another composing glorious works that cannot really be likened to music, another observing the destiny of organic life on some world, life that it had perhaps fabricated for that purpose, another—Human words are useless.

  Always, though, the nodes were in continuous communication over the light-years, communication on tremendous bandwidths of every possible medium. This was the galactic brain. That unity, that selfhood that was slowly coalescing, might spend millions of years contemplating a thought; but the thought would be as vast as the thinker, in whose sight an eon was as a day and a day was as an eon.

  Already now, in its nascence, it affected the course of the universe. The time came when a node fully recalled Earth. That memory went out to others as part of the ongoing flow of information, ideas, feelings, reveries, and who knows what else? Certain of these others decided the subject was worth pursuing, and relayed it on their own message-streams. In this wise it passed through light-years and centuries, circulated, developed, and at last became a decision, which reached the node best able to take action.

  Here the event has been related in words, ill-suited though they are to the task. They fail totally when they come to what happened next. How shall they tell of the dialogue of a mind with itself, when that thinking was a progression of quantum flickerings through configurations as intricate as the wave functions, when the computational power and database were so huge that measures become meaningless, when the mind raised aspects of itself to interact like persons until it drew them back into its wholeness, and when everything was said within microseconds of planetary time?

  It is impossible, except vaguely and misleadingly. Ancient humans used the language of myth for that which they could not fathom. The sun was a fiery chariot daily crossing heaven, the year .1 god who died and was reborn, death a punishment for ancestral sin. Let us make our myth concerning the mission to Earth.

  Think, then, of the primary aspect of the node’s primary consciousness as if it were a single mighty entity, and name it Alpha.

  Think of a lesser manifestation of itself that it had synthesized and intended to release into separate existence as a second entity. For reasons that will become clear, imagine the latter masculine and name it Wayfarer.

  All is myth and metaphor, beginning with this absurd nomenclature. Beings like these had no names. They had identities, instantly recognizable by others of their kind. They did not speak together, they did not go through discussion or explanation of any sort, the were not yet “they.” But imagine it.

  Imagine, too, their surroundings, not as perceived by their manifold sensors or conceptualized by their awarenesses and emotions, but as if human sense organs were reporting to a human brain. Such a picture is scarcely a sketch. Too much that was basic could not have registered. However, a human at an astronomical distance—could have seen an M2 dwarf star about fifty parsecs from Sol, and ascertained that it had planets. She could have detected signs ol’ immense, enigmatic energies, and wondered.

  In itself, the sun was undistinguished. The galaxy held billions like it. Long ago, an artificial intelligence—at that dawn stage of evolution, this was the best phrase—had established itself there because one of the planets bore curious life forms worth studying. That research went on through the megayears. Meanwhile the ever-heightening intelligence followed more and more different interests: above all, its self-evolution. That the sun would stay cool for an enormous length of time had been another consideration. The node did not want the trouble of coping with great environmental change’s before it absolutely must.

  Since then, stars had changed their relative positions. This now was the settlement nearest to Sol. Suns closer still were of less interest and had merely been visited, if that. Occasionally a free-space, dirigible node had passed through the neighborhood, but none chanced to be there at this epoch.

  Relevant to our myth is the fact that no thinking species ever appeared on the viviferous world. Life is statistically uncommon in the cosmos, sapience almost vanishingly rare, therefore doubly precious.

  Our imaginary human would have seen the sun as autumnally yellow, burning low and peacefully. Besides its planets and lesser natural attendants, various titanic structures orbited about it. From afar, they seemed like gossamer or like intricate spiderwebs agleam athwart the stars; most of what they were was force fields. They gathered and focused the energies that Alpha required, they searched the deeps of space and the atom, they transmitted and received the thought-flow that was becoming the galactic brain; what more they did lies beyond the myth.

  Within their complexity, although not at any specific location, lived Alpha, its apex. Likewise, for the moment, did Wayfarer.

  Imagine a stately voice: “Welcome into being. Yours is a high and, it may be, dangerous errand. Are you willing?”

  If Wayfarer hesitated an instant, that was not from fear of suffering harm but from fear of inflicting it. “Tell me. Help me to understand.”

  “Sol—” the sun of old Earth, steadily heating since first it took shape, would continue stable for billions of years before it exhausted i lie hydrogen fuel at its core and swelled into a red giant. But—

  A swift computation. “Yes. I see.” Above a threshold level of radiation input, the geochemical and biochemical cycles that had maintained the temperature of Earth would be overwhelmed. Increasing warmth put increasing amounts of water vapor into the atmosphere, and it is a potent greenhouse gas. Heavier cloud cover, raising the albedo, could only postpone a day of catastrophe. Rising above it, water molecules were split by hard sunlight into hydrogen, which escaped to space, and oxygen, which bound to surface materials. Raging fires released monstrous tonnages of carbon dioxide, as did rocks exposed to erosion in desiccated lands. It is the second major greenhouse gas. The time must come when the last oceans boiled away, leaving a globe akin to Venus; but well before then, life on Earth would be no more than a memory in the quantum consciousnesses. “When will total extinction occur?”

  “On the order of a hundred thousand years futureward.” Pain bit through the small facet of Wayfarer that came from Christian Brannock. He had most passionately loved his living world. Its latter-day insignificance had never changed this, nor had his own latter-day lack of uniqueness. Copies of his uploaded mind had become integral with awarenesses across the galaxy. So had the minds of millions of his fellow humans, ordinarily as unnoticed as single genes had been in their own bodies when their flesh was alive, and yet basic elements of the whole. Ransacking its database, Alpha had found the record of Christian Brannock and chosen to weave him—as a very partial individual, a single twig on a mighty tree—into the essence of Wayfarer, rather than someone else. The judgment was—call it intuitive.

  “Can’t you say more closely?” Wayfarer-Brannock appealed. “No,” replied Alpha. “The uncertainties and imp
onderables arc too many. Gaia,” mythic name for the node in the Solar System, “has responded to inquiries evasively when at all.”

  “Have… we… really been this slow to think about Earth?”

  “We had much else to think about and do, did we not? Gaia could at any time have requested special consideration. She never did. Thus the matter did not appear to be of major importance. Human Earth is preserved in memory. What is posthuman Earth but a planet approaching the postbiological phase?

  “True, the scarcity of spontaneously evolved biomes makes the case interesting. However, Gaia has presumably been observing and gathering the data, for the rest of us to examine whenever we wish. I he Solar System has seldom had visitors. The last was two million years ago. Since then, Gaia has joined less and less in our fellowship; her communications have grown sparse and perfunctory. But such withdrawals are not unknown. A node may, for example, want to pursue a philosophical concept undisturbed, until it is ready for general contemplation. In short, nothing called Earth to our attention.”

  “I would have remembered,” whispered Christian Brannock.

  “What finally reminded us?” asked Wayfarer.

  “The idea that Earth may be worth saving. Perhaps it holds more than Gaia knows of”—a pause—“or has told of. If nothing else, sentimental value.”

  “Yes, I understand,” said Christian Brannock.

  “Moreover, and potentially more consequential, we may well have experience to gain, a precedent to set. If awareness is to survive the mortality of the stars, it must make the universe over. That work of billions or trillions of years will begin with some small, experimental undertaking. Shall it be now,” the “now” of deathless beings already geologically old, “at Earth?”

  “Not small,” murmured Wayfarer. Christian Brannock had been an engineer.

  “No,” agreed Alpha. “Given the time constraint, only the re sources of a few stars will be available. Nevertheless, we have various possibilities open to us, if we commence soon enough. The question is which would be the best—and, first, whether we should act.

  “Will you go seek an answer?”

  “Yes,” responded Wayfarer, and “Yes, oh, God damn, yes,” cried Christian Brannock.

  2

  A spaceship departed for Sol. A laser accelerated it close to the speed of light, energized by the sun and controlled by a network ol interplanetary dimensions. If necessary, the ship could decelerate itself at journey’s end, travel freely about, and return unaided, albeit more slowly. Its cryomagnetics supported a good-sized ball of antimatter, and its total mass was slight. The material payload amounted simply to: a matrix, plus backup, for running the Wayfarer programs and containing a database deemed sufficient; assorted sensors and effectors; several bodies of different capabilities, into which he could download an essence of himself; miscellaneous equipment and power systems; a variety of instruments; and a thins ages forgotten, which Wayfarer had ordered molecules to make ;it the wish of Christian Brannock. He might somewhere find time and fingers for it. A guitar.

  II

  There was a man called Kalava, a sea captain of Sirsu. His clan was the Samayoki. In youth he had fought well at Broken Mountain, where the armies of Ulonai met the barbarian invaders swarming north out of the desert and cast them back with fearsome losses. He then became a mariner. When the Ulonaian League fell apart and the alliances led by Sirsu and Irrulen raged across the land, year after year, seeking each other’s throats, Kalava sank enemy ships, burned enemy villages, bore treasure and captives off to market.

  After the grudgingly made, unsatisfactory Peace of Tuopai, he went into trade. Besides going up and down the River Lonna and around the Gulf of Sirsu, he often sailed along the North Coast, bartering as he went, then out over the Windroad Sea to the colonies on the Ending Islands. At last, with three ships, he followed that coast east through distances hitherto unknown. Living off the waters and what hunting parties could bring from shore, dealing or fighting with the wild tribes they met, in the course of months he and his crews came to where the land bent south. A ways beyond that they found a port belonging to the fabled people of the Shining Fields. They abode for a year and returned carrying wares that at nine made them rich.

  From his clan Kalava got leasehold of a thorp and good farmland in the Lonna delta, about a day’s travel from Sirsu. He meant to settle down, honored and comfortable. But that was not in tin thought of the gods nor in his nature. He was soon quarreling with all his neighbors, until his wife’s brother grossly insulted him and he killed the man. Thereupon she left him. At the clanmoot that composed the matter she received a third of the family wealth, in gold and moveables. Their daughters and the husbands of these sided with her.

  Of Kalava’s three sons, the eldest had drowned in a storm at sea the next died of the Black Blood; the third, faring as an apprentice on a merchant vessel far south to Zhir, fell while resisting robbers in sand-drifted streets under the time-gnawed colonnades of an abandoned city. They left no children, unless by slaves. Nor would Kalava, now; no free woman took his offers of marriage. What he had gathered through a hard lifetime would fall to kinfolk who hated him. Most folk in Sirsu shunned him too.

  Long he brooded, until a dream hatched. When he knew it for what it was, he set about his preparations, more quietly than might have been awaited. Once the business was under way, though not too far along for him to drop if he must, he sought Ilyandi the skythinker.

  She dwelt on Council Heights. There did the Vilkui meet each year for rites and conference. But when the rest of them had dispersed again to carry on their vocation—dream interpreters, scribes, physicians, mediators, vessels of olden lore and learning, teachers of the young—Ilyandi remained. Here she could best search the heavens and seek for the meaning of what she found, on a high place sacred to all Ulonai.

  Up the Spirit Way rumbled Kalava’s chariot. Near the top, the trees that lined it, goldfruit and plume, stood well apart, giving him a clear view. Bushes grew sparse and low on the stony slopes, here I he dusty green of vasi, there a shaggy hairleaf, yonder a scarlet fireflower. Scorchwort lent its acrid smell to a wind blowing hot and slow off the Gulf. That water shone, tarnished metal, westward beyond sight, under a silver-gray overcast beneath which scudded rags of darker cloud. A rainstorm stood on the horizon, blurred murk and flutters of lightning-light.

  Elsewhere reached the land, bloomgrain ripening yellow, dun paperleaf, verdant pastures for herdlings, violet richen orchards, tall stands of shipwood. Farmhouses and their outbuildings lay widely strewn. The weather having been dry of late, dust whirled up from the roads winding among them to veil wagons and trains of porters. Regally from its sources eastward in Wilderland flowed the Lonna, arms fanning out north and south.

  Sirsu lifted battlemented walls on the right bank of the main stream, tiny in Kalava’s eyes at its distance. Yet he knew it, he could pick out famous works, the Grand Fountain in King’s Newmarket, the frieze-bordered portico of the Flame Temple, the triumphal column in Victory Square, and he knew where the wrights had their workshops, the merchants their bazaars, the innkeepers their houses for a seaman to find a jug and a wench. Brick, sandstone, granite, marble mingled their colors softly together. Ships and boats plied the water or were docked under the walls. On the opposite shore sprawled mansions and gardens of the Helki suburb, their rooftiles fanciful as jewels.

  It was remote from that which he approached.

  Below a great arch, two postulants in blue robes slanted their staffs across the way and called: “In the name of the Mystery, stop, make reverence, and declare yourself!”

  Their young voices rang high, unawed by a sight that had daunted warriors. Kalava was a big man, wide-shouldered and thick-muscled. Weather had darkened his skin to the hue of coal and bleached nearly white the hair that fell in braids halfway down his back. As black were the eyes that gleamed below a shelf of brow, in a face rugged, battered, and scarred. His mustache curved down past the jaw, dyed red. Travel
ing in peace, he wore simply a knee-length kirtle, green and trimmed with kivi skin, each scale polished, and buskins; but gold coiled around his arms and a sword was belted at his hip. Likewise did a spear stand socketed in the chariot, pennon flapping, while a shield slatted at the rail and an ax hung ready to be thrown. Four matched slaves drew the car. Their line had been bred for generations to be draft creatures—huge, long-legged, spirited, yet trustworthy after the males were gelded. Sweat sheened over Kalava’s brand on the small, bald heads and ran down naked bodies. Nonetheless they breathed easily and the smell of them was rather sweet.

  Their owner roared, “Halt!” For a moment only the wind had sound or motion. Then Kalava touched his brow below the headband and recited the Confession: “What a man knows is little, what he understands is less, therefore let him bow down to wisdom.” Himself, he trusted more in blood sacrifices and still more in his own strength; but he kept a decent respect for the Vilkui.

  “I seek counsel from the skythinker Ilyandi,” he said. That was hardly needful, when no other initiate of her order was present.

  “All may seek who are not attainted of ill-doing,” replied the senior boy as ceremoniously.

  “Ruvio bear witness that any judgments against me stand satisfied.” The Thunderer was the favorite god of most mariners.

  “Enter, then, and we shall convey your request to our lady.”

  The junior boy led Kalava across the outer court. Wheels rattled loud on flagstones. At the guesthouse, he helped stall, feed, and water the slaves, before he showed the newcomer to a room that in the high season slept two-score men. Elsewhere in the building were a bath, a refectory, ready food—dried meat, fruit, and flatbread—with richenberry wine. Kalava also found a book. After refreshment, he sat down on a bench to pass the time with it.