“If you can read at all, you just start reading the whole Cyc.”
“And so that’s why you know stuff about radio, and epicanthic folds, and other topics not in volume seventeen.”
“Yes. You have to read the whole thing. By ten, they decide whether you are Micropædia or Macropædia quality.”
“Is one of those more prestigious than the other?”
“Of course!” Sonar exclaimed, without bothering to say which was which.
“I’ll bet the Micropædia is just like memorizing a bunch of trivia,” Einstein essayed. Somewhat dangerously, in case he guessed wrong. But love had made him impetuous.
“Yes, you have to be able to hold more in your head to be one of the Nineteen,” Sonar said, favoring Einstein with a warm gaze.
“So, did you have to kill the previous Sonar Taxlaw in single combat or something?” Ty asked, and immediately thought better of it, since in general Diggers did not seem to have a well-developed sense of humor. Einstein threw him a mean look.
“No, not in this case,” the Cyc said politely, leaving open the question of in what cases the Diggers did actually employ such methods. “My mentor was Ceylon Congreve.”
“Now, that is a lovely and distinguished name!” Langobard exclaimed. “Volume three?”
“Four,” she said, with a note of surprise in her voice, as if not quite able to believe that someone could not know this.
“Do the original paper copies still exist?” Ty asked.
“Oh, yes,” Sonar said, “but we handle them only on ceremonial occasions. We work with handwritten copies.”
“Rufus must have squirreled away a lot of paper.”
“Tons of it,” said the Cyc. “Acid-free, one hundred percent cotton.”
During their nighttime escape over the mountains, they’d had little time for such conversations, and so their knowledge of Digger culture was still spotty. Some reasonable guesses could be made simply from the known history of the Hard Rain. The phase known as the Cooling Off had not begun until some thirty-nine hundred years after Zero, when the human races’ efforts to police the lunar rubble belt had finally paid off with a sharp falloff in the number of bolides striking the surface. Until then, the Diggers had been obliged to maintain a small, steady population in the space that Rufus had provided. Expansion of the Hole had been limited by the fact that it was a sealed system, with no place to put spoil—the quantities of loose material created by digging. As anyone knew who had ever dug a hole in the ground with a shovel, the size of the dirt pile—the spoil—was always larger than the volume of the hole. They’d been able to dump some spoil down a deep and otherwise useless shaft, but once this had been filled, they’d been unable to expand their living space for as long as the Hard Rain had made a direct connection to the outside too dangerous to be contemplated. So during that phase—well over three thousand years—they had devoted all of their energies to maintaining a community of several hundred people. Hence the rigid controls on breeding. Thanks to their Cycs, they knew everything about contraception, but they had no ability to manufacture things like condoms and pills, so that lore was mostly useless. The limitations on breeding were enforced by moral strictures, by segregation of the sexes, and by surgical sterilization. This, like all of their surgery, was performed without chemical anesthesia once they’d run out of drugs, which occurred fairly soon after Zero. Apparently they had gotten rather good at acupuncture and at biting down on things.
The reduction in the intensity of the Hard Rain would have been obvious to them on one level, since they could hear the impacts through the walls of the Hole. On another level it was easy to miss, since even dramatic changes spanned generations. But they had kept meticulous records of the frequency and intensity of strikes and so they recognized the downward trend in the late Fourth Millennium. When it was adjudged safe, they drilled an adit—a horizontal tunnel—out the side of the mountain until it broke out of a slope that they guessed was steep enough to have shed ejecta, preventing the buildup of rocky debris that now covered most of Earth’s surface to a considerable depth. That much had been true, but the debris at the base of the mountain had piled higher than they had expected—almost high enough to block the opening of their adit. Anyway, it had worked well enough that they had been able to push spoil out of it and thus begin expanding the Hole. The atmosphere was still far from breathable, so they’d been obliged to keep it sealed when they were not actively dumping stuff out of it, to prevent fumes from seeping in and poisoning the atmospheric system that they had looked after so meticulously for nearly four thousand years. This system, it seemed, was similar in principle to those used on space habitats. Carbon dioxide was removed by a combination of chemical scrubbers and green plants. Both of these required energy: the scrubber chemical had to be heated to drive off the CO2 it had absorbed, and the plants required light. Since they were cut off from the sun, they got their energy geothermally, using works that Rufus and the others of his generation had sunk deep into the roots of the mountain. The maintenance of this system had been the full-time occupation of everyone in the Hole for the entire time they’d been down there. When they had neared the end of their stock of light-emitting diodes they had revived the art of making lightbulbs, consulting the Cyc for particulars, blowing artisanal glass envelopes and winding the filaments by hand. Likewise with many other things they had found themselves in need of.
Ty, not really an expert on technology, made little headway in trying to imagine the particulars. Someone of a more technical bent might have devoted weeks to debriefing Sonar Taxlaw and extracting every last detail about how they had managed to get along with just the stuff available to them underground. More important for present purposes was to get a general understanding of the Diggers’ culture, and why they behaved as they did.
The requirement for a steel-spined authoritarian culture was obvious. Any power structure one of whose main goals was to prevent humans from fucking each other at will had to be extremely formidable. Had these people been living in, for example, the agricultural paradise of the Nile Delta, they might have been able to get away with some mazy religious dogma as the basis for that system. But instead they had been trapped within a large machine that would kill them all if allowed to go on the fritz, and so they had been obliged to develop a culture in which engineering became their dukh. Their finite supply of tungsten, stockpiled by wise Rufus, had to be stretched and husbanded so that their descendants thousands of years in the future would be able to manufacture lightbulbs to grow plants to make food and air. And so on and so forth in every particular of how these people lived their daily lives. Thirty people—the Ten, the Nineteen, and the One—were, at any given time, Cycs. Another thirty were toiling as their apprentices. Others played specific roles such as breeder mom, glassblower, acupuncturist, filament winder, potato nurturer, pump fixer. Structurally, culturally, it was very like a Bronze Age theocracy, but without any trace of God or the supernatural.
To that point it was not radically different from the subcultures of many First and Second Millennium space habitats, which—at least for a little while—gave Ty the idea that he could get a quick handle on Digger culture. But that fantasy soon evaporated. Those early Spacers had been living in cramped conditions, yes, and they had been just as dependent upon technology as the Diggers in their Hole. So of course there were some common features in the two cultures. But Spacers had always been able to look outside to see what the situation was, and—at least after a couple of thousand years of hunkering down in especially large rocks—to venture forth and do something about it. Even in their most desperate hours they had always expected to reinherit the Earth. The Diggers’ only way of knowing their situation and their fate was to listen to loud noises, tally them on acid-free, 100 percent cotton paper, and, every few years, compare the tally with a similar one made by some ancestor a couple of hundred years previously. For the first four thousand years, hope of a better future must have been seen as sheer folly. Worse than that, as an active betrayal of Digger principles, since people with hopes were apt to become profligate in spending resources and taking risks.