This and many similar incidents confirmed the Fifth Men in their new view of time. There followed an age in which the technique of direct inspection of the past was gradually improved, but not without tragedy. In the early stages it was found impossible to keep the “medium” alive for more than a few weeks after his venture into the past. The experience seemed to set up a progressive mental disintegration which produced first insanity, then paralysis, and, within a few months, death. This difficulty was at last overcome. By one means and another a type of brain was produced capable of undergoing the strain of supra-temporal experience without fatal results. An increasingly large proportion of the rising generation had now direct access to the past, and were engaged upon a great restatement of history in relation to their first-hand experience; but their excursions into the past were uncontrollable. They could not go where they wanted to go, but only where fate flung them. Nor could they go of their own will, but only through a very complicated technique, and with the cooperation of experts. After a time the process was made much easier, in fact, too easy. The unfortunate medium might slip so easily into the trance that his days were eaten up by the past. He might suddenly fall to the ground, and lie rapt, inert, dependent on artificial feeding, for weeks, months, even for years. Or a dozen times in the same day he might be flung into a dozen different epochs of history. Or, still more distressing, his experience of past events might not keep pace with the actual rhythm of those events themselves. Thus he might behold the events of a month, or even a lifetime, fantastically accelerated so as to occupy a trance of no more than a day’s duration. Or, worse, he might find himself sliding backwards down the vista of the hours and experiencing events in an order the reverse of the natural order. Even the magnificent brains of the Fifth Men could not stand this. The result was maniacal behaviour, followed by death. Another trouble also beset these first experimenters. Supra-temporal experience proved to be like a dangerous and habit-forming drug. Those who ventured into the past might become so intoxicated that they would try to spend every moment of their natural lives in roaming among past events. Thus gradually they would lose touch with the present, live in absentminded brooding, fail to react normally to their environment, turn socially worthless, and often come actually to physical disaster through inability to look after themselves.
Many more thousands of years passed before these difficulties and dangers were overcome. At length, however, the technique of supra-temporal experience was so perfected that every individual could at will practise it with safety, and could, within limits, project his vision into any locality of spacetime which he desired to inspect. It was only possible, however, to see past events through the mind of some past organism, no longer living. And in practice only human minds, and to some extent the minds of the higher mammals, could be entered. The explorer retained throughout his adventure his own personality and system of memory. While experiencing the past individual’s perceptions, memories, thoughts, desires, and in fact the whole process and content of the past mind, the explorer continued to be himself, and to react in terms of his own character, now condemning, now sympathizing, now critically enjoying the spectacle.
The task of explaining the mechanism of this new faculty occupied the scientists and philosophers of the species for a very long period. The final account, of course, cannot be presented save by parable; for it was found necessary to recast many fundamental concepts in order to interpret the facts coherently. The only hint that I can give of the explanation is in saying, metaphorically of course, that the living brain had access to the past, not by way of some mysterious kind of racial memory, nor by some equally impossible journey up the stream of time, but by a partial awakening, as it were, into eternity, and into inspection of a minute tract of spacetime through some temporal mind in the past, as though through an optical instrument. In the early experiments the fantastic speeding, slowing and reversal of the temporal process resulted from disorderly inspection. As a reader may either skim the pages of a book, or read at a comfortable pace, or dwell upon one word, or spell the sentence backwards, so, unintentionally, the novice in eternity might read or misread the mind that was presented to him.
This new mode of experience, it should be noted, was the activity of living brains, though brains of a novel kind. Hence what was to be discovered “through the medium of eternity” was limited by the particular exploring brain’s capacity of understanding what was presented to it. And, further, though the actual supra-temporal contact with past events occupied no time in the brain’s natural life, the assimilating of that moment of vision, the reduction of it to normal temporal memory in the normal brain structures, took time, and had to be done during the period of the trance. To expect the neural structure to record the experience instantaneously would be to expect a complicated machine to effect a complicated readjustment without a process of readjusting.
The access to the past had, of course, farreaching effects upon the culture of the Fifth Men, Not only did it give them an incomparably more accurate knowledge of past events, and insight into the motives of historical personages, and into large-scale cultural movements, but also it effected a subtle change in their estimate of the importance of things. Though intellectually they had, of course, realized both the vastness and the richness of the past, now they realized it with an overwhelming vividness. Matters that had been known hitherto only historically, schematically, were now available to be lived through by intimate acquaintance. The only limit to such acquaintance was set by the limitations of the explorer’s own braincapacity. Consequently the remote past came to enter into a man and shape his mind in a manner in which only the recent past, through memory, had shaped him hitherto. Even before the new kind of experience was first acquired, the race had been, as was said, peculiarly under the spell of the past; but now it was infinitely more so. Hitherto the Fifth Men had been like stay-at-home folk who had read minutely of foreign parts, but had never travelled; now they had become travellers experienced in all the continents of human time. The presences that had hitherto been ghostly were now presences of flesh and blood seen in broad daylight. And so the moving instant called the present appeared no longer as the only, and infinitesimal, real, but as the growing surface of an everlasting tree of existence. It was now the past that seemed most real, while the future still seemed void, and the present merely the impalpable becomingness of the indestructible past.
The discovery that past events were after all persistent, and accessible, was of course for the Fifth Men a source of deep joy; but also it caused them a new distress. While the past was thought of as a mere gulf of nonexistence, the inconceivably great pain, misery, baseness, that had fallen into that gulf, could be dismissed as done with; and the will could be concentrated wholly on preventing such horrors from occurring in the future. But now, along with past joy, past distress was found to be everlasting. And those who, in the course of their voyaging in the past, encountered regions of eternal agony, came back distraught. It was easy to remind these harrowed explorers that if pain was eternal, so also was joy. Those who had endured travel in the tragic past were apt to dismiss such assurances with contempt, affirming that all the delights of the whole population of time could not compensate for the agony of one tortured individual. And anyhow, they declared, it was obvious that there had been no preponderance of joy over pain. Indeed, save in the modern age, pain had been overwhelmingly in excess.
So seriously did these convictions prey upon the minds of the Fifth Men, that in spite of their own almost perfect social order, in which suffering had actually to be sought out as a tonic, they fell into despair. At all times, in all pursuits, the presence of the tragic past haunted them, poisoning their lives, sapping their strength. Lovers were ashamed of their delight in one another, As in the far-off days of sexual taboo, guilt crept between them, and held their spirits apart even while their bodies were united.
3. VOYAGING IN SPACE
It was while they were struggling in the grip of thi
s vast social melancholy, and anxiously erasing some new vision by which to reinterpret or transcend the agony of the past, that the Fifth Men were confronted with a most unexpected physical crisis. It was discovered that something queer was happening to the moon; in fact, that the orbit of the satellite was narrowing in upon the earth in a manner contrary to all the calculations of the scientists.
The Fifth Men had long ago fashioned for themselves an all-embracing and minutely coherent system of natural sciences, every factor in which had been put to the test a thousand times and had never been shaken. Imagine, then, their bewilderment at this extraordinary discovery. In ages when science was still fragmentary, a subversive discovery entailed merely a reorganization of some one department of science; but by now, such was the coherence of knowledge, that any minute discrepancy of fact and theory must throw man into a state of complete intellectual vertigo.
The evolution of the lunar orbit had, of course, been studied from time immemorial. Even the First Men had learned that the moon must first withdraw from and subsequently once more approach the earth, till it should reach a critical proximity and begin to break up into a swarm of fragments likes the rings of Saturn. This view had been very thoroughly confirmed by the Fifth Men themselves. The satellite should have continued to withdraw for yet many hundreds of millions of years; but in fact it was now observed that not only had the withdrawal ceased, but a comparatively rapid approach had begun.
Observations and calculations were repeated, and ingenious theoretical explanations were suggested; but the truth remained completely hidden. It was left to a future and more brilliant species to discover the connexion between a planet’s gravitation and its cultural development. Meanwhile, the Fifth Men knew only that the distance between the earth and the moon was becoming smaller with ever-increasing rapidity.
This discovery was a tonic to a melancholy race. Men turned from the tragic past to the bewildering present and the uncertain future.
For it was evident that, if the present acceleration of approach were to be maintained, the i-noon would enter the critical zone and disintegrate in less than ten million years; and, further, that the fragments would not maintain themselves as a ring, but would soon crash upon the earth. Heat generated by their impact would make the surface of the earth impossible as the home of life. A short-lived and short-sighted species might well have considered ten million years as equivalent to eternity. Not so the Fifth Men. Thinking primarily in terms of the race, they recognized at once that their whole social policy must now be dominated by this future catastrophe. Some there were indeed who at first refused to take the matter seriously, saying that there was no reason to believe that the moon’s odd behaviour would continue indefinitely. But as the years advanced, this view became increasingly improbable. Some of those who had spent much of their lives in exploration of the past now sought to explore the future also, hoping to prove that human civilization would always be discoverable on the earth in no matter how remote a future. But the attempt to unveil the future by direct inspection failed completely. It was surmised, erroneously, that future events, unlike past events, must be strictly nonexistent until their creation by the advancing present.
Clearly humanity must leave its native planet. Research was therefore concentrated on the possibility of flight through empty space, and the suitability of neighbouring worlds. The only alternatives were Mars and Venus. The former was by now without water and without atmosphere. The latter had a dense moist atmosphere; but one which lacked oxygen. The surface of Venus, moreover, was known to be almost completely covered with a shallow ocean. Further the planet was so hot by day that, even at the poles, man in his present state would scarcely survive.
It did not take the Fifth Men many centuries to devise a tolerable means of voyaging in interplanetary space. Immense rockets were constructed, the motive power of which was derived from the annihilation of matter. The vehicle was propelled simply by the terrific pressure of radiation thus produced. “Fuel” for a voyage of many months, or even years, could, of course, easily be carried, since the annihilation of a minute amount of matter produced a vast wealth of energy. Moreover, when once the vessel had emerged from the earth’s atmosphere, and had attained full speed, she would, of course, maintain it without the use of power from the rocket apparatus. The task of rendering the “ether ship” properly manageable and decently habitable proved difficult, but not insurmountable. The first vessel to take the ether was a cigar-shaped hull some three thousand feet long, and built of metals whose artificial atoms were incomparably more rigid than anything hitherto known. Batteries of “rocket” apparatus at various points on the hull enabled the ship not only to travel forward, but to reverse, turn in any direction, or side-step. Windows of an artificial transparent element, scarcely less strong than the metal of the hull, enabled the voyagers to look around them. Within there was ample accommodation for a hundred persons and their provisions for three years. Air for the same period was manufactured in transit from protons and electrons stored under pressure comparable to that in the interior of a star. Heat was, of course, provided by the annihilation of matter. Powerful refrigeration would permit the vessel to approach the sun almost to the orbit of Mercury. An “artificial gravity” system, based on the properties of the electromagnetic field, could be turned on and regulated at will, so as to maintain a more or less normal environment for the human organism.
This pioneer ship was manned with a navigating crew and a company of scientists, and was successfully dispatched upon a trial trip. The intention was to approach close to the surface of the moon, possibly to circumnavigate it at an altitude of ten thousand feet, and to return without landing. For many days those on earth received radio messages from the vessel’s powerful installation, reporting that all was going well. But suddenly the messages ceased, and no more was ever heard of the vessel. Almost at the moment of the last message, telescopes had revealed a sudden flash of light at a point on the vessel’s course. It was therefore surmised that she had collided with a meteor and fused with the heat of the impact.
Other vessels were built and dispatched on trial voyages. Many failed to return. Some got out of control, and reported that they were heading for outer space or plunging toward the sun, their hopeless messages continuing until the last of the crew succumbed to suffocation. Other vessels returned successfully, but with crews haggard and distraught from long confinement in bad atmosphere. One, venturing to land on the moon, broke her back, so that the air rushed out of her, and her people died. After her last message was received, she was detected from the earth, as an added speck on the stippled surface of a lunar “sea.”
As time passed, however, accidents became rarer; indeed, so rare that trips in the void began to be a popular form of amusement. Literature of the period reverberates with the novelty of such experiences, with the sense that man had at last learned true flight, and acquired the freedom of the solar system. Writers dwelt upon the shock of seeing, as the vessel soared and accelerated, the landscape dwindle to a mere illuminated disk or crescent, surrounded by constellations. They remarked also the awful remoteness and mystery which travellers experienced on these early voyages, with dazzling sunlight on one side of the vessel and dazzling bespangled night on the other. They described how the intense sun spread his corona against a black and star-crowded sky. They expatiated also on the overwhelming interest of approaching another planet; of inspecting from the sky the still visible remains of Martian civilization; of groping through the cloud banks of Venus to discover islands in her almost coastless ocean; of daring an approach to Mercury, till the heat became insupportable in spite of the best refrigerating mechanism; of feeling a way across the belt of the asteroids and onwards toward Jupiter, till shortage of air and provisions forced a return
But though the mere navigation of space was thus easily accomplished, the major task was still untouched. It was necessary either to remake man’s nature to suit another planet, or to modify conditions upon ano
ther planet to suit man’s nature. The former alternative was repugnant to the Fifth Men. Obviously it would entail an almost complete refashioning of the human organism. No existing individual could possibly be so altered as to live in the present conditions of Mars or Venus. And it would probably prove impossible to create a new being, adapted to these conditions, without sacrificing the brilliant and harmonious constitution of the extant species.
On the other hand, Mars could not be made habitable without first being stocked with air and water; and such an undertaking seemed impos sible. There was nothing for it, then, but to attack Venus. The polar surfaces of that planet, shielded by impenetrable depths of cloud, proved after all not unendurably hot. Subsequent generations might perhaps be modified so as to withstand even the subarctic and “temperate” climates. Oxygen was plentiful, but it was all tied up in chemical combination. Inevitably so, since oxygen combines very readily, and on Venus there was no vegetable life to exhale the free gas and replenish the ever-vanishing supply. It was necessary, then, to equip Venus with an appropriate vegetation, which in the course of ages should render the planet’s atmosphere hospitable to man. The chemical and physical conditions on Venus had therefore to be studied in great detail, so that it might be possible to design a kind of life which would have a chance of flourishing. This research had to be carried out from within the ether ships, or with gas helmets, since no human being could live in the natural atmosphere of the planet.
We must not dwell upon the age of heroic research and adventure which now began. Observations of the lunar orbit were showing that ten millions years was too long an estimate of the future habitability of the earth; and it was soon realized that Venus could not be made ready soon enough unless some more rapid change was set on foot. It was therefore decided to split up some of the ocean of the planet into hydrogen and oxygen by a vast process of electrolysis. This would have beets a more difficult task, had not the ocean been relatively free from salt, owing to the fact that there was so little dry land to be denuded of salts by rain and river. The oxygen thus formed by electrolysis would be allowed to mix with the atmosphere. The hydrogen had to be got rid of somehow, and an ingenious method was devised by which it should be ejected beyond the limits of the atmosphere at so great a speed that it would never return. Once sufficient free oxygen had been produced, the new vegetation would replenish the loss due to oxidation. This work was duly set on foot. Great automatic electrolysing stations were founded on several of the islands; and biological research produced at length a whole flora of specialized vegetable types to cover the land surface of the planet. It was hoped that in less than a million years Venus would be fit to receive the human race, and the race fit to live on Venus.
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