"The Spacers, if any are left, might have voluntarily placed the worlds of the second wave out of bounds, too. Just because we don't mind intruding upon them doesn't mean that they don't mind it."
"True," said Trevize, "If they exist. But so far we don't even know if any planet exists for them to live on. So far, all we see are the usual gas giants. Two of them, and not particularly large ones."
Pelorat said hastily, "But that doesn't mean the Spacer world doesn't exist. Any habitable world would be much closer to the sun and much smaller and very hard to detect in the solar glare from this distance. We'll have to microJump inward to detect such a planet." He seemed rather proud to be speaking like a seasoned space traveler.
"In that case," said Bliss, "why aren't we moving inward?"
"Not just yet," said Trevize. "I'm having the computer check as far as it can for any sign of an artificial structure. We'll move inward by stages-a dozen, if necessary-checking at each stage. I don't want to be trapped this time as we were when we first approached Gaia. Remember, Janov?"
"Traps like that could catch us every day. The one at Gaia brought me Bliss." Pelorat gazed at her fondly.
Trevize grinned. "Are you hoping for a new Bliss every day?"
Pelorat looked hurt, and Bliss said, with a trace of annoyance, "My good chap-or whatever it is that Pel insists on calling you-you might as well move in more quickly. While I am with you, you will not be trapped."
"The power of Gaia?"
"To detect the presence of other minds? Certainly."
"Are you sure you are strong enough, Bliss? I gather you must sleep quite a bit to regain strength expended at maintaining contact with the main body of Gaia. How far can I rely on the perhaps narrow limits of your abilities at this distance from the source?"
Bliss flushed. "The strength of the connection is ample."
Trevize said, "Don't be offended. I'm simply asking. Don't you see this as a disadvantage of being Gaia? I am not Gaia. I am a complete and independent individual. That means I can travel as far as I wish from my world and my people, and remain Golan Trevize. What powers I have, and such as they are, I continue to have, and they remain wherever I go. If I were alone in space, parsecs away from any human being, and unable, for some reason, to communicate with anyone in any way, or even to see the spark of a single star in the sky, I would be and remain Golan Trevize. I might not be able to survive, and I might die, but I would die Golan Trevize."
Bliss said, "Alone in space and far from all others, you would be unable to call on the help of your fellows, on their different talents and knowledge. Alone, as an isolated individual, you would be sadly diminished as compared with youself as part of an integrated society. You know that."
Trevize said, "There would nevertheless not be the same diminution as in your case. There is a bond between you and Gaia that is far stronger than the one between me and my society, and that bond stretches through hyperspace and requires energy for maintenance, so that you must gasp, mentally, with the effort, and feel yourself to be a diminished entity far more than I must."
Bliss's young face set hard and, for a moment, she looked young no more or, rather, she appeared ageless-more Gaia than Bliss, as though to refute Trevize's contention. She said, "Even if everything you say is so, Golan Trevize-that is, was, and will be, that cannot perhaps be less, but certainly cannot be more-even if everything you say is so, do you expect there is no price to be paid for a benefit gained? Is it not better to be a warm-blooded creature such as yourself than a cold-blooded creature such as a fish, or whatever?"
Pelorat said, "Tortoises are cold-blooded. Terminus doesn't have any, but some worlds do. They are shelled creatures, very slow-moving but long-living."
"Well, then, isn't it better to be a human being than a tortoise; to move quickly whatever the temperature, rather than slowly? Isn't it better to support high-energy activities, quickly contracting muscles, quickly working nerve fibers, intense and long-sustained thought-than to creep slowly, and sense gradually, and have only a blurred awareness of the immediate surroundings? Isn't it?"
"Granted," said Trevize. "It is. What of it?"
"Well, don't you know you must pay for warm-bloodedness? To maintain your temperature above that of your surroundings, you must expend energy far more wastefully than a tortoise must. You must be eating almost constantly so that you can pour energy into your body as quickly as it leaks out. You would starve far more quickly than a tortoise would, and die more quickly, too. Would you rather be a tortoise, and live more slowly and longer? Or would you rather pay the price and be a quick-moving, quick-sensing, thinking organism?"
"Is this a true analogy, Bliss?"
"No, Trevize, for the situation with Gaia is more favorable. We don't expend unusual quantities of energy when we are compactly together. It is only when part of Gaia is at hyperspatial distances from the rest of Gaia that energy expenditure rises. And remember that what you have voted for is not merely a larger Gaia, not just a larger individual world. You have decided for Galaxia, for a vast complex of worlds. Anywhere in the Galaxy, you will be part of Galaxia and you will be closely surrounded by parts of something that extends from each interstellar atom to the central black hole. It would then require small amounts of energy to remain a whole. No part would be at any great distance from all other parts. It is all this you have decided for, Trevize. How can you doubt that you have chosen well?"
Trevize's head was bent in thought. Finally, he looked up and said, "I may have chosen well, but I must be convinced of that. The decision I have made it the most important in the history of humanity and it is not enough that it be a good one. I must know it to be a good one."