Arctica appeared below the flyer. Imagine her giving names to it and its features. As long as she had lived with them, they had their identities for her. The Coast Range of hills lifted close behind the littoral. Through it cut the Remnant River, which had been greater when rains were more frequent but continued impressive. With its tributaries it drained the intensely verdant Bountiful Valley. On the far side of that, foothills edged the steeply rising Boreal Mountains. Once the highest among them had been snowcapped, now their peaks were naked rock. Streams rushed down the flanks, most of them somewhere joining the Remnant as it flowed through its gorges toward the sea. In a lofty vale gleamed the Rainbowl, the big lake that was its headwaters. Overlooking from the north loomed the mountain Mindhome, its top, the physical centrum of Gaia, lost in cloud cover.
In a way the scenes were familiar to him. She had sent plenty of full-sensory transmissions, as part of her contribution to universal knowledge and thought. Wayfarer could even recall the geological past, back beyond the epoch when Arctica broke free and drifted north, ramming into land already present and thrusting the Boreals heavenward. He could extrapolate the geological future in comparable detail, until a red giant filling half the sky glared down on an airless globe of stone and sand, which would at last melt. Nevertheless, the reality, the physical being here, smote him more strongly than he had expected. His sensors strained to draw in every datum while his vessel flew needlessly fast to the goal.
He neared the mountain. Jutting south from the range, it was not the tallest. Brushy forest grew all the way up its sides, lush on the lower slopes, parched on the heights, where many trees were leafless skeletons. That was due a recent climatic shift, lowering the mean level of clouds, so that a formerly well-watered zone had been suffering a decades-long drought. (Yes, Earth was moving faster toward its doomsday.) Fire must be a constant threat, he thought. But no, Gaia’s agents could quickly put any out, or she might simply ignore it. Though not large, the area she occupied on the summit was paved over and doubtless nothing was vulnerable to heat or smoke.
He landed. For an instant of planetary time, lengthy for minds that worked at close to light speed, there was communication silence.
He was again above the cloud deck. It eddied white, the peak rising from it like an island among others, into the level rays of sunset. Overhead arched a violet clarity. A thin wind whittered, cold at this altitude. On a level circle of blue-black surfacing, about a kilometer wide, stood the crowded structures and engines of the centrum.
A human would have seen an opalescent dome surrounded by towers, some sheer as lances, some intricately lacy; and silver spiderwebs; and lesser things of varied but curiously simple shapes, mobile units waiting to be dispatched on their tasks. Here and there, flyers darted and hovered, most of them as small and exquisite as hummingbirds (if our human had known hummingbirds). To her the scene would have wavered slightly, as if she saw it through rippling water, or it throbbed with quiet energies, or it pulsed in and out of space-time. She would not have sensed the complex of force fields and quantum-mechanical waves, nor the microscopic and submicroscopic entities that were the major part of it.
Wayfarer perceived otherwise.
Then: “Again, welcome,” Gaia said.
“And again, thank you,” Wayfarer replied. “I am glad to be here.”
They regarded one another, not as bodies—which neither was wearing—but as minds, matrices of memory, individuality, and awareness. Separately he wondered what she thought of him. She was giving him no more of herself than had always gone over the communication lines between the stars. That was: a nodal organism, like Alpha and millions of others, which over the eons had increased its capabilities, while ceaselessly experiencing and thinking; the ages of interaction with Earth and the life on Earth, maybe shaping her soul more deeply than the existence she shared with her own kind; traces of ancient human uploads, but they were not like Christian Brannock, copies of them dispersed across the galaxy, no, these had chosen to stay with the mother world. …
“I told you I am glad too,” said Gaia regretfully, “but I am not, quite. You question my stewardship.”
“Not really,” Wayfarer protested. “I hope not ever. We simply wish to know better how you carry it out.”
“Why, you do know. As with any of us who is established on a planet, high among my activities is to study its complexities, follow its evolution. On this planet that means, above all, the evolution of its life, everything from genetics to ecology. In what way have I failed to share information with my fellows?”
In many ways, Wayfarer left unspoken. Overtly: “Once we”—here he referred to the galactic brain—“give close consideration to the matter, we found countless unresolved puzzles. For example—”
What he set forth was hundreds of examples, ranging over millennia. Let a single case serve. About ten thousand years ago, the big continent south of Arctica had supported a wealth of large grazing animals. Their herds darkened the plains and made loud the woods. Gaia had described them in loving detail, from the lyre-curved horns of one genus to the wind-rustled manes of another. Abruptly, in terms of historical time, she transmitted no more about them. When asked why, she said they had gone extinct. She never explained how.
To Wayfarer she responded in such haste that he got a distinct impression she realized she had made a mistake. (Remember, this is a myth.) “A variety of causes. Climates became severe as temperatures rose—”
“I am sorry,” he demurred, “but when analyzed, the meteorological data you supplied show that warming and desiccation cannot yet have been that significant in those particular regions.”
“How are you
