Permutation City

planets in the sky, relative to the sun -- testing out a theory which attempts to explain those observations by assuming that Planet Lambert is fixed, and everything else orbits around it.'

Maria watched the creatures intently. She would have been hard-pressed to identify the rhythms in their elaborate weaving motions -- but when the swarm began to drift apart, the collapse of order was obvious.

'Now here's the heliocentric version, from a few years later.'

The dance, again, was too complex to analyze -- although it did seem to be more harmonious -- and after a while, almost hypnotic. The black specks shifting back and forth against the white sky left trails on her retinas. Below, the ubiquitous grassland seemed an odd setting for astronomical theorizing. The Lambertians apparently accepted their condition -- in which herding mites represented the greatest control they exerted over nature -- as if it constituted as much of a Utopia as the Elysian's total freedom. They still faced predators. Many still died young from disease. Food was always plentiful, though; they'd modeled their own population cycles, and learned to damp the oscillations, at a very early stage. And, nature lovers or not, there'd been no 'ideological' struggles over 'birth control'; once the population model had spread, the same remedies had been adopted by communities right across the planet. Lambertian cultural diversity was limited; far more behavior was genetically determined than was the case in humans -- the young being born self-sufficient, with far less neural plasticity than a human infant -- and there was relatively little variation in the relevant genes.

The heliocentric theory was acceptable; the dance remained coherent. Repetto replayed the scene, with a 'translation' in a small window, showing the positions of the planets represented at each moment. Maria still couldn't decipher the correspondence -- the Lambertians certainly weren't flying around in simple mimicry of the hypothetical orbits -- but the synchronized rhythms of planets and insect-astronomers seemed to mesh somewhere in her visual cortex, firing some pattern detector which didn't know quite what to make of the strange resonance.

She said, 'So Ptolemy was simply bad grammar -- obvious nonsense. Doubleplus ungood. And they reached Copernicus a few years later? That's impressive. How long did they take to get to Kepler . . . to Newton?'

Zemansky said smoothly, 'That was Newton. The theory of gravity -- and the laws of motion -- were all part of the model they were dancing; the Lambertians could never have expressed the shapes of the orbits without including a reason for them.'

Maria felt the hairs rise on the back of her neck.

'If that was Newton . . . what came before?'

'Nothing. That was the first successful astronomical model -- the culmination of about a decade of trial and error by teams all over the planet.'

'But they must have had something. Primitive myths. Stacks of turtles. Sun gods in chariots.'

Zemansky laughed. 'No turtles or chariots, obviously -- but no: no naive cosmologies. Their earliest language grew out of the things they could easily observe and model -- ecological relationships, population dynamics. When cosmology was beyond their grasp, they didn't even try to tackle it; it was a non-subject.'

'No creation myths?'

'No. To the Lambertians, believing any kind of 'myth' -- any kind of vague, untestable pseudo-explanation -- would have been like . . . suffering hallucinations, seeing mirages, hearing voices. It would have rendered them completely dysfunctional.'

Maria cleared her throat. 'Then I wonder how they'll react to us.'

Durham said, 'Right now, creators are a non-subject. The Lambertians have no need of that hypothesis. They understand evolution: mutation, natural selection -- they've even postulated some kind of macromolecular gene. But the origin of life remains an open question, too difficult to tackle, and it would probably be centuries before they realized that their ultimate ancestor was seeded 'by hand' . . . if in fact there's any evidence to show that -- any logical reason why A. hydrophila couldn't have arisen in some imaginary prebiotic history.

'But it won't come to that; after a few more decades banging their heads against the problem of the primordial cloud, I think they'll guess what's going on. An idea whose time has come can sweep across the planet in a matter of months, however exotic it might be; these creatures are not traditionalists. And once the theory that their world was made arises in the proper scientific context, it's not going to drive them mad. All Alisa was saying was that the sort of primitive superstitions which early humans believed in wouldn't have made sense to the early Lambertians.'

Maria said, 'So . . . we'll wait until 'creators' are no longer a non-subject before we barge in and announce that that's exactly what we are?'

Durham replied, 'Absolutely. We have permission to make contact once the Lambertians have independently postulated our existence -- and no sooner.' He laughed, and added, with evident satisfaction, 'Which we achieved by asking for much more.'

Maria still felt uneasy -- but she didn't want to hold up proceedings while she grappled with the subtleties of Lambertian culture.

She said, 'All right. Cosmology is the trigger, but they're looking for a deeper explanation for their chemistry. Are they having any luck?'

Repetto brought back the map of Planet Lambert; the markers showing the locations of the teams of theorists were replaced by small bar charts in the same positions. 'These are the dance times sustained for various subatomic models which have been explored over the past five years. A few theories are showing some promise, improving slightly with each refinement; other groups are getting fairly random results. Nobody's come up with anything they'd be capable of communicating over any distance; these dances are too short-lived to be remembered by teams of messengers.'

Maria felt her skin crawl, again. False messages die, en route. There was something chilling about all this efficiency, this ruthless pursuit of the truth. Or maybe it was just a matter of injured pride: treating some of humanity's most hard-won intellectual achievements as virtually self-evident wasn't the most endearing trait an alien species could possess.

She said, 'So . . . no team is on the verge of discovering the truth?'

Repetto shook his head. 'Not yet. But the Autoverse rules are the simplest explanation for the thirty-two atoms, by almost any criterion.'

'Simplest to us. There's nothing in the Lambertians' environment to make them think in terms of cellular automata.'

Zemansky said, 'There was nothing in their environment to make them think in terms of atoms.'

'Well, no, but the ancient Greeks thought of atoms -- but they didn't come up with quantum mechanics.' Maria couldn't imagine a preindustrial human inventing the cellular automaton -- even as a mathematical abstraction -- let alone going on to hypothesize that the universe itself might be one. Clockwork cosmologies had come after physical clocks; computer cosmologies had come after physical computers.

Human history, though, clearly wasn't much of a guide to Lambertian science. They already had their Newtonian -- 'clockwork' -- planetary model. They didn't need artifacts to point the way.

She said, 'This 'aesthetic' which governs the acceptability of theories -- have you been able to map the neural structures involved? Can you reproduce the criteria?'

Repetto said, 'Yes. And I think I know what you're going to ask next.'

'You've devised your own versions of possible Lambertian cellular automaton theories? And you've tested them against the Lambertian aesthetic?'

He inclined his head modestly. 'Yes. We don't model whole brains, of course -- that would be grossly unethical -- but we can run simulations of trial dances with nonconscious Lambertian neural models.'

Modeling Lambertians modeling the Autoverse . . .

'So how did it go?'

Repetto was hesitant. 'The results so far are inconclusive. None of the theories I've constructed have worked -- but it's a difficult business. It's hard to know whether or not I'm really stating the hypothesis in the way the Lambertians would -- or whether I've really captured all the subtleties of the relevant behavior in a nonconscious model.'

'But it doesn't look promising?'