Foundation's Edge

Dom said, “What did you experience?”

Pelorat said, “It’s hard to describe. The wall seemed to twinkle and glisten and, at times, it seemed to turn fluid. It seemed to have ribs and changing symmetries. I—I’m sorry, Dom, but I did not find it attractive.”

Dom sighed. “You do not participate in Gaia, so you would not see what we see. I had rather feared that. Too bad! I assure you that although these Participations are enjoyed primarily for their aesthetic value, they have their practical uses, too. A happy wall is a long-lived wall, a practical wall, a useful wall.”

“A happy wall?” said Trevize, smiling slightly.

Dom said, “There is a dim sensation that a wall experiences that is analogous to what ‘happy’ means to us. A wall is happy when it is well designed, when it rests firmly on its foundation, when its symmetry balances its part and produces no unpleasant stresses. Good design can be worked out on the mathematical principles of mechanics, but the use of a proper Participation can fine tune it down to virtually atomic dimensions. No sculptor can possibly produce a first-class work of art here on Gaia without a well-crafted Participation and the ones I produce of this particular type are considered excellent—if I do say so myself.

“Animate Participations, which are not my field,” and Dom was going on with the kind of excitement one expects in someone riding his hobby, “give us, by analogy, a direct experience of ecological balance. The ecological balance on Gaia is rather simple, as it is on all worlds, but here, at least, we have the hope of making it more complex and thus enriching the total consciousness enormously.”

Trevize held up his hand in order to forestall Pelorat and wave him into silence. He said, “How do you know that a planet can bear a more complex ecological balance if they all have simple ones?”

“Ah,” said Dom, his eyes twinkling shrewdly, “you are testing the old man. You know as well as I do that the original home of humanity, Earth, had an enormously complex ecological balance. It is only the secondary worlds— the derived worlds—that are simple.”

Pelorat would not be kept silent. “But that is the problem I have set myself in life. Why was it only Earth that bore a complex ecology? What distinguished it from other worlds? Why did millions upon millions of other worlds in the Galaxy—worlds that were capable of bearing life—develop only an undistinguished vegetation, together with small and unintelligent animal life-forms?”

Dom said, “We have a tale about that—a fable, perhaps. I cannot vouch for its authenticity. In fact, on the face of it, it sounds like fiction.”

It was at this point that Bliss—who had not participated in the meal—entered, smiling at Pelorat. She was wearing a silvery blouse, very sheer.

Pelorat rose at once. “I thought you had left us.”

“Not at all. I had reports to make out, work to do. May I join you now, Dom?”

Dom had also risen (though Trevize remained seated). “You are entirely welcome and you ravish these aged eyes.”

“It is for your ravishment that I put on this blouse. Pel is above such things and Trev dislikes them.”

Pelorat said, “If you think I am above such things, Bliss, I may surprise you someday.”

“What a delightful surprise that would be,” Bliss said, and sat down. The two men did as well. “Please don’t let me interrupt you.”

Dom said, “I was about to tell our guests the story of Eternity. —To understand it, you must first understand that there are many different Universes that can exist—virtually an infinite number. Every single event that takes place can take place or not take place, or can take place in this fashion or in that fashion, and each of an enormous number of alternatives will result in a future course of events that are distinct to at least some degree.

“Bliss might not have come in just now; or she might have been with us a little earlier; or much earlier; or having come in now, she might have worn a different blouse; or even in this blouse, she might not have smiled roguishly at elderly men as is their kindhearted custom. In each of these alternatives—or in each of a very large number of other alternatives of this one event—the Universe would have taken a different track thereafter, and so on for every other variation of every other event, however minor.”

Trevize stirred restlessly. “I believe this is a common speculation in quantum mechanics—a very ancient one, in fact.”

“Ah, you’ve heard of it. But let us go on. Imagine it is possible for human beings to freeze all the infinite number of Universes, to step from one to another at will, and to choose which one should be made ‘real’—whatever that word means in this connection.”

Trevize said, “I hear your words and can even imagine the concept you describe, but I cannot make myself believe that anything like this could ever happen.”

“Nor I, on the whole,” said Dom, “which is why I say that it would all seem to be a fable. Nevertheless, the fable states that there were those who could step out of time and examine the endless strands of potential reality. These people were called the Eternals and when they were out of time they were said to be in Eternity.

“It was their task to choose a Reality that would be most suitable to humanity. They modified endlessly— and the story goes into great detail, for I must tell you that it has been written in the form of an epic of inordinate length. Eventually they found (or it is said) a Universe in which Earth was the only planet in the entire Galaxy on which could be found a complex ecological system, together with the development of an intelligent species capable of working out a high technology.

“That, they decided, was the situation in which humanity could be most secure. They froze that strand of events as Reality and then ceased operations. Now we live in a Galaxy that has been settled by human beings only, and, to a large extent, by the plants, animals, and microscopic life that they carry with them—voluntarily or inadvertently—from planet to planet and which usually overwhelm the indigenous life.

“Somewhere in the dim mists of probability there are other Realities in which the Galaxy is host to many intelligences, but they are unreachable. We in our Reality are alone. From every action and every event in our Reality, there are new branches that set off, with only one in each separate case being a continuation of Reality, so that there are vast numbers of potential Universes—perhaps an infinite number—stemming from ours, but all of them are presumably alike in containing the one-intelligence Galaxy in which we live. —Or perhaps I should say that all but a vanishingly small percentage are alike in this way, for it is dangerous to rule out anything where the possibilities approach the infinite.”

He stopped, shrugged slightly, and added, “At least, that’s the story. It dates back to before the founding of Gaia. I don’t vouch for its truth.”

The three others had listened intently. Bliss nodded her head, as though it were something she had heard before and she were checking the accuracy of Dom’s account.

Pelorat reacted with a silent solemnity for the better part of a minute and then balled his fist and brought it down upon the arm of his chair.

“No,” he said in a strangled voice, “that affects nothing. There’s no way of demonstrating the truth of the story by observation or by reason, so it can’t ever be anything but a piece of speculation, but aside from that— Suppose it’s true! The Universe we live in is still one in which only Earth has developed a rich life and an intelligent species, so that in this Universe—whether it is the all-in-all or only one out of an infinite number of possibilities—there must be something unique in the nature of the planet Earth. We should still want to know what that uniqueness is.”

In the silence that followed, it was Trevize who finally stirred and shook his head.

“No, Janov,” he said, “that’s not the way it works. Let us say that the chances are one in a billion trillion— one in 10²¹—that out of the billion of habitable planets in the Galaxy only Earth—through the workings of sheer chance—would happen to develop a rich ecology and, eventually, intelligence. If that is so, then one in 10²¹ of the various strands of potential Realities would represent such a Galaxy and the Eternals picked it. We live, therefore, in a Universe in which Earth is the only planet to develop a complex ecology, an intelligent species, a high technology—not because there is something special about Earth, but because simply by chance it developed on Earth and nowhere else.

“I suppose, in fact,” Trevize went on thoughtfully, “that there are strands of Reality in which only Gaia has developed an intelligent species, or only Sayshell, or only Terminus, or only some plane which in this Reality happens to bear no life at all. And all of these very special cases are a vanishingly small percentage of the total number of Realities in which there is more than one intelligent species in the Galaxy. —I suppose that if the Eternals had looked long enough they would have found a potential strand of