CHAPTER THREE: The Nursery of Time

 

Even from half a million miles out, it was already plain to Amalfi that the planet of He had undergone a vast transformation since he had last seen it, back in 3850. The Okies had first encountered that planet six years earlier, the only fertile offspring of a wild star then swimming alone in a vast starless desert, not one of the normal starfree areas between spiral arms of the galaxy, but a temporary valley called the Rift, the mechanics of whose origin lay shrouded impenetrably in the origins of the universe itself.

Even at first sight, it had been apparent that the history of He had been more than ordinarily complicated. It had then been an emerald-green world, covered with rank jungle from pole to pole, a jungle which had almost completely swamped out what had obviously been a high civilization not many years before. The facts as they emerged after landing turned out to be complex in the extreme; it was highly probably that there was not another planet in the galaxy which had undergone so many fatal and unlikely accidents. The Hevians had fought them all doggedly, but by the time the Okies had arrived they had realized that nothing less than a miracle could help them now.

For Hevian civilization, the Okies had been that miracle, giving the Hevians mastery over their own local and considerable banditry, and killing off the planet-wide jungle, in the only way possible: by abruptly and permanently changing the climate of He. That this geological revolution had had to be accomplished by putting the whole planet into uncontrolled flight out of the galaxy was perhaps unfortunate, but Amalfi did not think so at the time. He had formed a high opinion of the shrewdness and latent technological ability underlying the Hevian ceremonial paint and feathers, and did not doubt that the Hevians would learn the necessary techniques for preserving their planet as an abode of life well before the danger point would be reached. After all, the Hevians had been great once, and even after the long battle with the jungle and each other they had still had such sophistications as radio, rockets, missile weapons and supersonics when the Okies had first encountered them; and during the brief period that the Okies had been in contact with them, they had snapped up such Middle Ages and Early Modern techniques as nuclear fission and chemotherapy. Besides, there had been the spindizzies, some from the city, some new-built, but all necessarily left behind and in full operation; studied with the eye of intelligence, they could not but provide the Hevians with clues to many potent disciplines which they would have little difficulty putting to work once the jungle was gone; in the meantime, the machines would maintain the atmosphere of the planet and its internal heat even in the most frigid depths of intergalactic space; it would be the darkness of those gulfs, which the Hevians could mitigate but could hardly abolish, which would kill off the jungle.

Nevertheless, Amalfi had hardly expected to see the return of He, under wholly controlled spindizzy drive, in barely a century and a half, still faintly, patchily blue-green with cultivation under cloud-banks which glared a brilliant white in the light of a nearby Cepheid variable star. That the wandering body was He had been settled back home on New Earth as soon as Hazleton had been able to identify the wanderer's advance ultraphone beacon, as Amalfi had predicted; and hardly five minutes after Carrel had brought his ship out of spindizzy drive within hailing distance of the new planet, Amalfi had himself spoken to Miramon, the very same Hevian leader with whom the Okies had dealt one hundred and fifty years ago-to the mutual astonishment of each that the other was still alive?

"Not that I myself should have been surprised," Miramon said, from the head of his great council table of black, polished, oily wood. "After all, I myself am still alive, to an age beyond the age of all the patriarchs in our recorded history; which in turn is only a small fraction of the age you gave us to understand you had attained when first we met you. But old habits of thought die hard. We were able to isolate and purify only a few of the anti-agathics produced by our jungle, acting on the hints you had given us, before the jungle died off and the plants which produced those drugs did not prove cultivatable under the new conditions, so we had no choice but to search for ways to synthesize these compounds. We were forced to work very fast, and happily the search was successful by the third generation, but in the meantime the existing supply had sufficed to keep only a few of us alive beyond what we still think of as our normal lifespans. Hence to most of our population, Mayor Amalfi, you are now only a legend, and immortal man of infinite wisdom from beyond the stars, and I have been unable to prevent myself from coming to think of you in much the same way."

Though he still wore in his topknot the great black barbaric saw-toothed feather of his authority, the Miramon before Amalfi today bore little resemblance to the lithe, supple, hard-headedly practical semi-savage who had once squatted on the floor in Amalfi's presence, because chairs were the uncomfortable prerogatives of the gods. His skin was still firm and tanned, his eyes bright and darting, but, though his abundant hair was now quite white, he had settled into that period of life, neither youth nor age, characteristic of the man who goes on anti-agathics only when somewhat past "natural" middle age. His councillors-including Retma, of Fabr-Suithe, which in Amalfi's time had been a bandit town which had been utterly destroyed during the last struggle before He took flight, but which now, rebuilt in ceremonial pink marble, was the second city of all He-mostly wore this same look. There were one or two who obviously had not been allowed access to the death-curing drugs until they had been in their "natural" seventies, bringing to the council table the probably spurious appearance of sagacity conferred by many wrinkles, an obvious physical fragility, and a sexual neutrality which was both slightly repellent and covertly enviable at the same time-a somatatype which for mankind as a whole had long ago lost its patent as the physiological stamp of hard-won wisdom, but which here among these recent immortals still exerted a queer authority, even upon Amalfi.

"If you managed to synthesize even one of the anti-agathics, you've proven yourselves better chemists than anyone else in human history," Amalfi said. "They're far and away the most complicated molecules ever found in nature; certainly we've never heard of anyone who was able to synthesize even one."

"One is all we managed to synthesize," Miramon admitted. "And the synthetic form has certain small but undesirable side-effects we've never been able to eliminate. Several others turned out to be natural sapogenins which we could raise in our artificial climate, and modify into anti-agathics by two or three subsequent fermentation steps. Finally there are four others of very broad usefulness, which we produce by fermentation alone, using micro-organisms grown in nutrient solutions in deep tanks, into which we feed comparatively simple and cheap precursors."

"We have one like that, the first, in fact, that was ever discovered: ascomycin," Amalfi said. "I think I will stick to my original judgment. As chemists you people could obviously give all the rest of us cards and spades."

"Then it is fortunate for us, and perhaps for every sentient being everywhere, that it is not as chemists that we come seeking you," Retma said, a trifle grimly.

"Which brings me to my main question," Amalfi said. "Just why did you turn back? I can't imagine that you would have been seeking me personally, you had no reason to believe that I was anywhere within thousands of parsecs of this area; we last parted company on the other side of the home galaxy. Obviously you must have looped back toward home as soon as you were sure you had centralized control over your spindizzy installation, long before you were much past half-way to the Andromeda galaxy. What I want to know is, what turned you back?"

"There you are both right and wrong," Miramon said, with a trace of what could have been pride; it was hard to tell, for his face was extremely solemn. "We obtained reasonably close control of the anti-gravity machines only about thirty years after you and I parted company, Mayor Amalfi. When the full implications of what we had found were borne in upon us, we were highly elated. Now we had a real planet, in the radical meaning of the word, a real wanderer which could go where it chose, settling in one solar system or another and leaving it again when we so decided. By that time we were almost self-sufficient, there was obviously no need for us to become migrant workers, as your city and its enemies had been. And since we were well on the way to the second galaxy in any event, and since there seemed to be absolutely no limit to the velocities we could mount with the huge mass of our planet on which to operate, we chose to go on and explore."

"To the Andromeda galaxy?"

"Yes, and beyond. Of course we saw very little of that galaxy, which is as vast as our home; we think that it is not inhabited by any widespread, space-cruising race such as yours and mine, but in the brief sampling of its stars that we were able to take we might well simply have missed hitting upon an inhabited or colonized system. By that time, in any event, we had made the discovery which was to become the basis of our lives and purposes from then onward, and knew that we should have to return home very shortly. We left the Andromeda nebula for its satellite, the one that you identified for us as M-33 on our old star-tapestries from the Great Age, and thence took the million and a half light year leap to the Lesser Magellanic Cloud. It was during our transition from the Lesser to the Greater Cloud that you detected us. That was, to be sure, an accident; we had intended to go directly through into the home galaxy and onward to Earth, where, our experience with you had given us good reason to believe, we might find a reservoir of knowledge great enough to cope with what we had discovered. That our own knowledge was insufficient was never for a moment in doubt.

"But it is an accident of the greatest good omen that we should have been found again by you as we were returning home, Mayor Amalfi. Surely the gods must have arranged such an accident, which otherwise is impossibly unlikely; for if there is any man not on Earth itself who can help us, you are that man."

"You were not once such a believer in the gods, as I recall," Amalfi said, smiling tightly.

"Opinions change with age; otherwise what is age for?"

"So does history," Amalfi said. "And, whether I can help you or not, it Is a lucky accident that you stopped here before carrying on into the home lens. Earth is no longer dominant there. We've had considerable difficulty in understanding what actually is going on, the messages that we get from there came pouring in to us in such an enormous garble; but of one thing I'm sure: there's a huge new imperialism on the rise there, on its way to becoming as powerful as Earth once was, and as Vegas was before Earth. It calls itself the Web of Hercules, and what remains of Earth-'s interstellar empire doesn't appear to be putting up much of a resistance against it. If you want my advice, I would suggest that you stay out of the home galaxy entirely, or you may, well be gobbled down whole."

There was a long silence around the Hevian council table. At last, Miramon said:

"This leaves us with little recourse indeed. It may well be that there is no answer, as we have often suspected. Or it may be that the gods have indeed brought us back to the one source of wisdom that we need."

"We will know soon enough," Retma said quietly. "If in that instant there will be time enough to know anything. Or enough of time left thereafter to remember it."

“I shall probably be unable to advise you so long as I don't know what you're talking about," Amalfi said, impressed in spite of himself by the tone of high seriousness with which the Hevians spoke. "Just what was the discovery that turned you back? What is the forthcoming event that you seem to dread?"

"Nothing less," Retma said evenly, "than the imminent coming to an end of time itself."

For a while, even after they had explained it to him, Amalfi was so unable to believe that the Hevians had meant what they said that he was prepared to dismiss it as one of those superstitions with which He had been riddled, like many another provincial planet, when the Okies had first made contact with it. That time must have a stop was a proposition that nothing in all his long life had prepared him to accept even for an instant. Even after it became reluctantly clear to him that what Miramon and the Hevians had found in the intergalactic deeps had been a real event with real implications, and one which Amalfi's own people-particularly Schloss' group-were prepared to document, event and implication alike, he continued to be unable to do more with it than dismiss it out of hand.

He said so, at a conference on shipboard which included Miramon, Retma, Dr. Schloss, Carrel, and-by Dirac-Jake and Dr. Gifford Bonner, the latter the leader of that group of New Earth philosophers which Hazleton had recently joined^ called the Stochastics. "If what you say is true," he said, "there's nothing to be done about it anyhow. Time will come to an end, and that's that. But the end of the world has been predicted often before, I seem to remember from history, and here we all are still; I can't credit that so vast a process as the whole physical universe could possibly come to an end in the flicker of an eyelash, .and since I can't believe it, I'm not suddenly going to start behaving as if I did. No more do I see why anyone else should."

"Amalfi, you're quite right! You don't understand," Dr. Schloss said. "Of course the end of the universe has been predicted often before. It's one of those two-pronged choices that any philosopher has to make: either you hold that the universe will at some time come to an end, or else you arrive at the position that it never can; there are intermediate guesses that you can make, that's where we get our cyclical theories, but essentially they're simply hedges. If you decided that the universe has a limited lifetime, then you must begin to think about when that life will come to an end, on the basis of whatever data are available to you. We have been agreed for millennia that the universe cannot last forever, however we've hedged the agreement, so that leaves us nothing to quarrel about but the date at which we fixed the end. And sooner or later, too, the time was going to come when we had enough data to fix even the date without doubt. The Hevians have brought us sufficient facts to do that now; the date is fixed, whatever it proves to be, without cavil or quibble. If we are to talk about the matter intelligently at all, there is a fixed fact with which we must begin. It is not open to agreement. It is a fact.

"I think," Amalfi said in a voice of steel, "that you have gone quietly insane. You should listen to the City Fathers for a while on this subject, as I have; if you like, I can give you a Dirac line to them from right here aboard ship, and you can hear some of the memories that they have stored up-some of them dating back long before spaceflight; our city is very old. You should hear particularly the stories about the end of the world which emerge as inevitably as a plant from a seed every time someone takes it into his head to believe that he has a direct wire to the Almighty. Some of the stories, of course are just jokes like the many predictions of the end of the world which were made by a man named Voliva, who knew that the Earth was flat; or the predictions of Armageddon that came repeatedly from an Earthly sect called the Believers, which was riding high on Earth during the very decade when both the spindizzy and the anti-agathics were discovered. But high intelligence doesn't prevent you from falling into this kind of apocryphal madness, either; seven centuries before space flight on Earth, the greatest scientist of that time, a man named Bacon, was predicting the imminent arrival of Anti-Christ simply because he was unable to persuade his contemporaries to adopt scientific method, which he had just invented. Furthermore, I may add, in the decade just before spaceflight on Earth, all the best minds of the age saw no future for the human race, and all other air-breathing life on Earth, but complete obliteration in a world-wide thermonuclear war, which over a period of eight years could have broken out within any given twenty-minute period. And in that, Dr. Schloss, they were quite right; their world really could have ended during any one of these twenty-minute periods; the physical possibilities were there, but somehow the world managed to last until spaceflight became only a specter, burned out by starlight, as the ghosts of night-bound peoples evaporate from their mythologies as soon as they're able to produce light even at midnight simply by tripping a switch."

He looked around at the faces of the men drawn up at the ship's chart table. Few of them would meet his eyes; most of them were looking down at the table itself, or at their own hands. Their expressions were those of men who had been listening to a mass murderer attempting to enter a plea of insanity.

"Amalfi," Jake's voice said abruptly from the Dirac, "the time for forensics is past. This question does not have two sides, except for the right side and the wrong side, and we are going to have to shuck you off as a brilliant advocate for the wrong side. You have done your magnificent best, but since the right side does not need an advocate, you have been wasting your breath. Let me ask the rest of this conference: What shall we do now? Does it appear that, as the Hevians think, there is anything at all that we can do? I am inclined to doubt it."

"So am I," Dr. Schloss said, though there was nothing in his manner to suggest the gloom inherent in his conclusion; he seemed rather to be as intensely interested as Amalfi had ever been of him in his life. "For temporal creatures to hope to survive the end of time is surely as futile as a fish hoping to survive being thrown into a sun. The paradox is immediate, on the surface, and quite inescapable."

"No technical problem is ever that insoluble," Amalfi said in exasperation. "Miramon, if you will pardon me for passing such a judgment-and I don't care if you don't-I think you. are suffering from the same syndrome as Dr. Freeman and Dr. Schloss: you have grown old before your time. You've lost your sense of adventure."

"Not entirely," Miramon said, regarding Amalfi with an expression of grave and hurt disappointment. "We, at least, are not yet convinced that there is no answer; if we do not find it here, we have every intention of continuing to travel in the hope of finding someone with whom we can combine forces, someone who may have some solution to suggest. If we find no one, then we shall continue to seek that solution ourselves."

"Good for you," Amalfi said fiercely. "And by God I'll go with you. We can't very well re-enter our own galaxy, but the next one is NGC 6822, that's about a million light years from here-for you, that's only a hop. And at least we'd be in motion; we wouldn't be sitting around here with folded hands waiting for the blow to fall."

"That would be motion without purpose," Miramon said solemnly. "I agree with you that it would be dangerous and unwise to risk any entanglement with the Web of Hercules, whatever that may be; but I can see no better point in cruising from one galaxy to another solely in the bare hope of encountering a high civilization which might be able to help us, and all the rest of the universe with us. We have that hope, but it cannot be the final goal of our journey; our ultimate destination must be the center of the metagalaxy, the hub of all the galaxies of space-time. It is only there, where all the forces of the universe lie in dynamic balance, that anyone can hope to take any action to escape or to modify the end which is coming. There is, after all, not much time left before that moment is due. And above all, Mayor Amalfi, it is not simply a technical problem; it is an ending which was written organically into the fundamental structure of the universe itself, written in the beginning by what hands we know not; all that we can know now is that it was foreordained."

And from this conclusion, though Amalfi's own psyche had been fighting against its acceptance since the moment that he himself had realized it was so, there was really no escape. Conceptually, the universe had been a reasonably comfortable place to live in, in primitive atomic theory which offered the assurance that everything, earth, air, fire or water, steel and oranges, man or star, was ultimately composed of submicroscopic vortices called protons and electrons leavened a little with neutrons and neutrinos which had no charge, and bound together by a disorderly but homely family of mesons. The type case was the hydrogen atom, one proton sitting cosily on the hearth, contentedly positive in charge, while about it wove one electron, surrounded by its negative field like crackling cat's fur. That was the simple case; but one was assured that even in the heaviest and most complicated atoms, even those man-made ones like plutonium, one need only add more and heavier logs to the fire, and more cats would come droning about it; it would be hard to tell one cat from another, but this is the customary penalty the owner of hundreds pays.

The first omen that there was something wrong with this chromo of sub-microscopic and universal domesticity appeared, as all good omens should, in the skies. Back on Earth, nearly half a century before space flight, some astronomer whose name is quite lost had noticed that two or three of the millions of meteors that entered Earth's atmosphere every day exploded at a height and with a violence which could not be accounted for by an eccentricity of orbit or velocity; and in one of those great flights of fancy which account in the long run for every new link in the great chain of understanding, he had a dream of something which he called "contra-terrene" matter-a matter made of fire with cat's fur, which would be circled by cats in flames: matter in which the fundamental hydrogen atom would have a nucleus which would be an anti-proton, with the mass of a proton but carrying a negative charge, around which would orbit an anti-electron, with the negligible mass of an electron, but carrying a positive charge. A meteor of atoms constructed on this model, he reasoned, would explode with especial violence at the first contact with even the faintest traces of Earth's normal-matter atmosphere; and such meteors would suggest that somewhere in the universe there were whole planets, whole suns, whole galaxies composed of such matter, whose barest touch would be more than death-would be ultimate and complete annihilation, each form of matter converting the other wholly into energy in a flaming and total embrace.

Curiously, the contra-terrene meteors died out of the theory shortly thereafter, while the theory itself survived. The exploding meteors were found to be easier to explain in more conventional terms, but anti-matter survived, and by the middle of the Twentieth Century experimental physicists were even able to produce the stuff a few atoms at a time. Those topsy-turvy atoms proved to be nonviable beyond a few millionths of a micro-second, and it gradually became clear that even in this short lifetime the time in which they lived was running backwards. The particles of which they were made were born, in the great clumsy bevatrons of that age, some micro-seconds in the future, and their assembly into atoms of anti-matter in the present time of the observers was in fact the moment of their death. Obviously anti-matter was not only theoretically possible, but could exist; but it could not exist in this universe in any assemblage so gross as a meteor; if there were worlds and galaxies made of anti-matter, they existed only in some unthinkable separate continuum where time and the entropy gradiant ran backwards. Such a continuum would require at least four extra dimensions, at a minimum, in addition to the conventional four of experience.

As the universe of normal matter expanded, unwound and ran down toward its inevitable heat-death, somewhere nearby and yet in a "somewhere" unimaginable by man, a duplicate universe as vast and complex was contracting, winding up, approaching the supernal concentration of mass and energy called the monobloc. As complete dispersion, darkness and silence was to be the fate of the universe in which the arrow of time pointed down the entropy gradient, so in the anti-matter universe the end was to be mass beyond mass, energy beyond energy, raw glare and fury to the ultimate power raging in a primeval "atom" no bigger across than the orbit of Saturn. And out of one universe might come the other; in the universe of normal matter the monobloc was the beginning, but in the universe of anti-matter it would be the end; in a universe of normal entropy, the monobloc is intolerable and must explode; in a universe of negative entropy, the heat-death is intolerable and must condense. In either case, the command is: Let there be light.

What the visible, tangible universe had been like before the monobloc was, however, agreed to be forever unknowable. The classic statement had been made many centuries earlier by St. Augustine, who, when asked what God might have been doing before He created the universe, replied that He was constructing a hell for persons who asked such questions; thus "pre-Augustinian time" came to be something that a historian could know all about, but a physicist, by definition, nothing.

Until now; for if the Hevians were right, they had lifted that curtain a little way and caught an instant's glimpse of the unknowable.

To have looked it full in the face could have been no more fatal.

During the course of their exultant drive upon the Andromeda galaxy, the Hevians had discovered that one of their spindizzies-oddly, it was one of the machines which had been new-built for the project, not one of the old and somewhat abused drivers which had been dismounted from the Okie city-was beginning to run somewhat hot. This was a problem which was then brand new to them, and rather than take chances on the to them unknown effects which might be produced by such a machine were it to run really wild, they shut down their entire spindizzy network while repairs were made, leaving behind only a 0.02 per cent screen necessary to protect the planet's atmosphere and heat budget.

And it was then and there, in the utter silences of intergalactic space, that their instruments detected for the first time in human history the whispers of continuous creation: the tiny ping of new atoms of hydrogen being born, one by one, out of nothing at all.

This would alone and in itself have been a sobering enough experience for any man of a thoughtful cast of mind, even one who lacked the Hevians' history of preoccupation with religious questions; no one could view the birth of the raw material from which the whole known universe was built, out of what was demonstrably nothingness, without being shaken by the conviction that there must also be a Creator, and that He must be in the immediate vicinity of where His work was proceeding. Those tiny pings and pips in the Hevians' instruments seemed at first to leave no room in the long arguments of cosmogony and cosmology for any cyclical theory of the universe, any continuous and eternal systole diastole from monobloc to heat-death and back again, with a Creator required only at this remote inception of the rhythmic process, or not at all. Here was creation in process: the invisible Finger touched nothingness, and from nothing came something; the ultimate absurdity, which, because it was ultimate, could be nothing else but divine.

Yet the Hevians were sophisticated enough to be suspicious. Historically, fundamental discoveries were dependably ambiguous; this discovery, which on the face of it seemed to provide a flat answer to 25,000 years of theological speculation, and in effect to bring God into inarguable being for the first time since He had been postulated by some Stone Age sun-worshipper or mushroom-eating mystic, could not be as simple as it seemed. It had been won too easily; too much else is implied by the continual creating existence of a present God to make it tenable that that existence should be provable by so simple and single a physical datum, arrived at by what could honestly only be described as ordinary accident.

Gifford Bonner was later to remark that it had been fortunate beyond belief that it had been the Hevians, a people only recently winning back to some degree of scientific sophistication, but which had never lost its sense of the continuity and the overwhelming complexity of theology in a scientific age, who had first been allowed to hear these tiny birth-cries in the nursery of time. The typical Earthman of the end of the Third Millennium, with his engineer's bias, philosphically webbed in about equal measure to a sentimentally hard-headed "common sense" and a raw and naive mystique of Progress (it was at about this point in Bonner's analysis that Amalfi had felt a slight impulse to squirm), might easily have taken the datum at face value and walked the plank on it directly into a morass of telepathy, the racial unconscious, personal reincarnation or any of a hundred other traps which await the scientifically oriented man who does not know that he too is as thorough-going a mystic as a fakir lying on a bed of nails.

The Hevians were suspicious; they questioned the discovery first of all only on the subject of what it said it was saying. Theology could wait. If continuous creation was a fact, then primarily that ruled out that there should ever have been a monobloc in the history of the universe, or that there should ever be a heat-death; instead, it would always go along like this, world without end. Therefore, if the discovery was as fundamentally ambiguous as all such discoveries before had proven to be, it should in the same breath be implying exactly the opposite; ask it that question, and see what it says.

This singularly tough-minded approach paid off at once, though the further implications which it offered for inspection proved in no way easier to digest than the first and contrary set had been. Taking a long chance with the still largely unfamiliar machines, and with the precarious life of their entire planet, the Hevians shut down their spindizzies entirely and listened more intently.

In that utmost of dead silences, the upsetting whisper of continuous creation proved to have two voices. Each pinging birth-pang was not a single note, but a duo. As each atom of hydrogen leapt into being from nowhere into the universe of experience, a sinister twin, a hydrogen atom of anti-matter, came there in that instant to die, from ... somewhere else.

And there it was. Even what had seemed to be fundamental, ineluctable proof of one-way time and continuous creation could also be regarded as inarguable evidence for a cyclical cosmology. In a way, to the Hevians, it was satisfying; this was physics as they knew it to be, an idiot standing at a crossroads shouting "God went thataway!" and managing to point down all four roads at once. Nevertheless, it left them a legacy of dread. This single many-barbed burr of a datum, which could have been obtained under no other circumstances, was also sufficient in itself to endorse the existence of an entire second universe of anti-matter, congruent point for point with the universe of experience of normal matter, but opposite to it in sign. What appeared to have been the birth of a hydrogen atom of anti-matter, simultaneous with the birth of the normal hydrogen atom, was actually its death; there was now no doubt that time ran backwards in the anti-matter universe, and so did the entropy gradient, one being demonstrably a function of the other.

The concept, of course, was old-so old, in fact, that Amalfi had difficulty in remembering just when in his lifetime it had become so familial1 to him that he had forgotten about it entirely. Its revival here by the Hevians struck him at first as an exasperating anachronism, calculated only to get in the way of the real work of practical men. He was in particular rather scornful of the notion of a universe in which negative entropy could be an operating principle; under such circumstances, his rustily squeaking memory pointed out, cause and effect would not preserve even' the rough statistical associations which they were allowed in the universe of experience; energy would accumulate, events would undo themselves, water would run uphill, old men would clump into existence out of the air and soil and unlearn their profitless ways back toward their mothers' wombs.

"Which is what they do in any event," Gifford Bonner had said gently. "But actually, I doubt that it's that paradoxical, Amalfi. Both of these universes can be regarded as unwinding, as running down, as losing energy with each transaction. The fact that from our point of view the anti-matter universe seems to be gaining energy is simply a bias built into the way we're forced to look at things. Actually these two universes probably are simply unwinding in opposite directions, like two millstones. Though the two arrows of time seem to be pointing in opposite directions, they probably both point downhill, like fingerboards at the crest of a single road. If the dynamics of it bother you, bear in mind that both are four dimensional continua and from that point of view both are wholly static."

"Which brings us to the crucial question of contiguity," Jake said cheerfully. "The point is, these two four-dimensional continua are intimately related, as the twin events the Hevians observed make very plain; which I suppose must mean that we must allow for a total of at least sixteen dimensions to contain the whole system. Which is no particular surprise in itself; you need at least that many to accommodate the atomic nucleus of average complexity comfortably. What is surprising is that the two continua are approaching each other; I agree with Miramon that the observations his people made can't be interpreted any other way; up to now, the fact that gravitation in the two universes is also opposite in sign seems to have kept them apart, but that repulsion or pressure or whatever you want to call it is obviously growing steadily weaker. Somewhere in the future, the near future, it will decline to zero, there will be a Pythagorean point-for-point collision between the two universes as a whole—"

"-and it's hard to imagine how any physical framework, even one that allows sixteen dimensions of elbowroom, will be able to contain the energy that's going to be released," Dr. Schloss said. "The monobloc isn't even in the running; if it ever existed, it was just a wet firecracker by comparison."

"Translation: blooey," Carrel said. "It's perfectly possible that a rational cosmology is going to have to accommodate all three events," Gifford Bonner said. "I mean by that the monobloc, the heat death, and this thing-this event that seems to fall midway between the two. Curious; there are a number of myths, and ancient philosophical systems, that allow for such a break or discontinuity right in the middle of the span of existence; Giordano Bruno, Earth's first relativist, called it the period of Interdestruction, and a compatriot of his named Vico allowed for it in what was probably the first cyclical theory of ordinary human history; and in Scandanavian mythology it was called the Ginnangu-Gap. But I wonder, Dr. Schloss, if the destruction is going to be quite as total as you suggest. I am nobody's physicist, I freely confess, but it seems to me that if these two universes are opposite in sign at every point, as everyone at this meeting has been implying, then the result cannot be only a general transformation of the matter on both sides into energy. There will be energy transformed into matter, too, on just as large a scale, after which the gravitational pressure should begin to build up again and the two universes, having in effect passed through each other and exchanged hats, will begin retreating from each other once more. Or have I missed something crucial?"

"I'm not sure that the argument is as elegant as it appears on the surface," Retma said. "That awaits Dr. Schloss's mathematical analysis, of course; but in the meantime I cannot help but wonder why, for instance, if this simultaneous creation-interdestruction-destruction cycle is truly cyclical, it should have this ornamental waterspout of continuous creation attached to it? A machinery of creation which involves no less than three universal cataclysms in each cycle should not need to be powered by a sort of continuous drip; either the one is too grandiose, or the other is insufficient. Besides, continuous creation implies a steady state, which is irreconcilable."

"I don't know about that," Jake said. "It doesn't sound like anything the Milne transformations couldn't handle; it's probably just a clock function."

"Defined, as I recall, as a mathematical expression about the size of a Bottle of aspirin," Carrel said ruefully.

"Well, there's one thing I'm perfectly certain of," Amalfi growled, "and that is that it's damned unlikely anybody is going to be around to care about the exact results of the collision after it happens. At least not at the rate this hassle is going. Is there actually anything useful that we can do, or would we be better off spending all this time playing poker?"

"That," Miramon said, "is exactly what we know least about. In fact it would appear that we know nothing about it whatsoever."

"Mr. Miramon—" Web Hazleton's voice spoke from the shadows and stopped. Obviously he was waiting to be told that he was breaking his promise not to interrupt, but it was as plain to Amalfi as it was to the rest of the group that he was interrupting nothing now; his voice had broken only a dead and despairing silence.

"Go ahead, Web," Amalfi said.

"Well, I was just thinking. Mr. Miramon came here looking for somebody to help him do something he doesn't know how to do himself. Now he thinks we don't know how to do it either. But what was it?"

"He's just said that he doesn't know," Amalfi said gently.

"That isn't what I mean," Web said hesitantly. "What I mean is, what would he like to do, even if he doesn't know how to do it? Even if it's impossible?"

Bonner's voice chuckled softly in the still shipboard air. "That's right," he said, "the ends determine the means. A hen is only an egg's device for producing another egg. Is that Hazleton's grandson? Good for you, Web."

"There are a good many experiments that ought to be performed, if only we knew how to design them," Miramon admitted thoughtfully. "First of all, we ought to have a better date for the catastrophe than we have now; 'the near future' is a huge block of time under these conditions, almost as shapeless a target as 'sometime'; we would need it defined to the millisecond just to begin with. I applaud the young Earthman's brilliant common sense, but I refuse to delude myself by asking for more than that; even that seems hopeless."

"Why?" Amalfi said. "What would you need to calculate it from? Given the data, the City Fathers can handle the calculations; they were designed to handle any mathematical operation once the parameters were filled, and in a thousand years I've never known them to fail to come through on that kind of thing, usually within two or three minutes; never as long as a day."

"I remember your City Fathers," Miramon said, with a brief ironical motion of his eyebrows which was perhaps a last vestigial tremor of his old savage awe at the things which were the city and of the city. "But the major parameter that needs to be filled here is a precise determination of the energy level of the other universe."

"Why, that shouldn't be so very difficult," Dr. Schloss said, in dawning astonishment. "That can't be anything but a transform of energy level in our own universe; the mayor's right, the City Fathers could give you that almost before you could finish stating the problem to them; t-tau transforms are the fundamental stuff of faster-than-light space travel-I'm astonished that you've been able to get along without them."

"Not so," Jake said. "No doubt the t-tau relationships are congruent on both sides of the barrier, I don't doubt that for a minute, but you're dealing in sixteen dimensions here; along what axis are you going to impose the congruency? Are you going to assume that t-time and tau-time apply uniformly and transformably along all sixteen axes? You can't do that, unless you're willing to involve the total system in such a double, which in t-time involves a mono-bloc for the whole apparatus; that's hopeless. At least it's hopeless for us, in the time we have left; we'd be frittering away our days in chase of endlessly retreating decimals. You might just as well set the City Fathers to work giving you a final figure for pi."

"I stand corrected," Dr. Schloss said, his tone halfway between wry humor and stiff embarrassment. "You're quite right, Miramon; there's a discontinuity here which we can't read from theory. How inelegant."

"Elegance can wait," Amalfi said. "In the meantime, why is it so impossible to get an energy-level reading from the other side? Dr. Schloss, your research group used to talk about their hopes of constructing an anti-matter artifact. Couldn't we use such a thing as an exploratory missile to the other side?"

"No," Dr. Schloss said promptly. "You forget that such an object would be on the other side-it would be on our side. We would have to work out some way of assembling it in the future of the experiment; by the time we were first able to see it, in the present of the experiment, it would be in an advance!! state of decay, to say the least, and would then evolve only to the condition in which we assembled it, No reading that we got from it would tell us anything but howl anti-matter behaves in our universe; it would tell us nothing about any universe in which antimatter is normal."

After a moment, he added thoughtfully, "And besides, that would be a project hard to realize in anything under a century, I'd be more inclined to say it would take two; under the circumstances I too would rather be playing poker."

"Well, I wouldn't," Jake said unexpectedly. "I think Amalfi may be right in principle. Difficult though the problem is, there ought to be some sort of probe that we could extend across the discontinuity. Mind you, I agree that the anti-matter artifact is the wrong approach entirely; the thing would have to be absolutely immaterial, a construct made entirely out of what we could pick up in No Man's Land. But seeing across long distances under great odds is the discipline I was trained in. I don't think we should count this an impossible problem. Schloss, how do you feel about this? If you and your group are willing to give up your anti-matter artifact for poker, would you be willing to work with me on this a while? I'll need your background, but you'll need my point of view; between us we just might devise the instrument and get the message. Mind you, Miramon, I hold out no hope, but—"

"-except the hope you hold out." Miramon said, his eyes shining. "Now I am hearing from you what I hoped to hear. This is the voice of the Earth of memory. We will give you everything you need that is within our power to give; we give you our planet, to begin with; but the universe, the twin universes, the unthinkable meta-universe you must take for yourselves. We remember you now; you have always had that boundless ambition." His voice darkened suddenly. "And we shall be your disciples; that, too, is as it has always been. Only begin; that is all we ask."

Amalfi gathered the consensus of the present eyes around the chart table. Such agreement as he needed from the listeners on New Earth he was able to gather almost as well from the silence.

"I think," he said slowly, "that we have begun already."