As for the Artes, that final social order was not meant to be invisible. Musicians and
jugglers strolled among the guests, the smallest, most flamboyant class.
Even more dashing was an air-sculptor Hari spotted across the vast chamber, when Dors
pointed him out. Hari had heard of the new art form. The “statues” were of colored smoke
that the artist exhaled in rapid puffs. Shapes of eerie, ghost like complexity floated
among the bemused guests Some figures clearly made fun of the courtly gentry, as puffy
caricatures of their ostentatious clothes and poses.
To Hari's eye, the smoke figures seemed entrancing ... until they started drifting apart
into tatters without substance or predictability.
“It's all the mode,” he heard one onlooker remark. “I hear the artist comes straight from
Sark”
“The Renaissance world?” another asked. wide-eyed. “Isn't that a little daring? Who
invited him?”
“The Emperor himself, it's said.”
Hari frowned. Sark, where those personality simulations came from. “Renaissance world,” he
muttered irritably, knowing now what he disliked about the smoke shapes: their ephemeral
nature. Their intended destiny, to dissolve into chaos.
As he watched, the air-sculptor blew a satirical tableau. The first figure formed of
crimson smoke, and he did not recognize it until Dors elbowed him and laughed. “It's you!”
He clamped his gaping mouth shut, unsure how to handle the social nuances. A second cloud
of coiling blue streamers formed a clear picture of Lamurk, eyebrows knotted in fury. The
foggy figures hovered in confrontation, Hari smiling, Lamurk scowling.
And Lamurk looked the fool, with bulging eyes and pouting lips.
“Time for a graceful exit,” Hari's lieutenant whispered. Hari was only too glad to agree.
When they got home, he was sure that there had been a bit extra in the stim he was handed,
some-thing that freed his tongue. Certainly it was not the slow-spoken, reflective Seldon
who had traded jabs with Lamurk. He would have to watch that Dors simply shook her head. “It was you. Just a portion of you that doesn't get out to
play very much.”
“Parties are supposed to cheer people up,” Yugo said, sliding a cup of across Hari's
smooth mahogany desktop.
“Not this one,” Hari said.
“All that luxury, powerful people, beautiful women, witty hangers-on -- I think I could
have stayed awake.”
“That's what depresses me, thinking back over it. All that power! And nobody there seems
to care about our decline.”
“Isn't there some old saying about -- ”
“Fiddling while Roma burns. Dors knew it, of course. She says it's from pre-Empire, about
a Zone with pretensions of grandeur. 'All worms lead to Roma' is another one.”
“Never heard of this Roma.”
“Me either, but pomposity springs forth eternal. It looks comic in retrospect.”
Yugo moved restlessly around Hari's office. “So they don't care?”
“To them it's just backdrop for their power games.”
Already the Empire had worlds, Zones, and even whole arcs of spiral arms descended into
squalor. Still worse, in a way, was a steady slide into garish amusements, even vulgarity.
The media swarmed with the stuff. The new “renaissance” styles from worlds like Sark were
popular.
To Hari the best of the Empire was its strands of restraint, of subtlety and discretion in
manners, finesse and charm, intelligence, talent, and even glamour. Helicon had been crude
and rural, but it knew the difference between silk and swine.
“What do the policy types say?” Yugo sat halfway on Hari's desk, avoiding the control
functions implanted beneath a woody veneer. He had come in with the kaff as a pretext,
fishing for gossip about the exalted. Hari smiled to himself; people relished some aspects
of hierarchy, however much they griped about it.
“They're hoping some of the 'moral rebirth' movements -- like revised Ruellianism, say --
will take hold. Put spine into the Zones, one of them said.”
“Ummm. Think it'll work?”
“Not for long.”
Ideology was an uncertain cement. Even religion fervor could not glue an empire together
for long. Either force could drive formation of an empire, but they could not hold against
greater, steady rides -- principally, economics.
“How about the war in the Orion Zone?”
“Nobody mentioned it.”
“Think we've got war figured right in the equations?” Yugo had a knack for suddenly
putting his finger on what was bothering Hari.
“No. War was an overesteemed element in history.”
Certainly war often gained center stage; no one continued to read a beautiful poem when a
fist fight broke out nearby. But fist fights did not last, either. Further, they joggled
the elbows of those trying to make a living. To engineers and traders alike, war did not
pay. So why did wars break out now, with all the economic weight of the Empire against
them?
“Wars are simple. But we're missing something basic -- I can feel it.”
“We've based the matrices on all that historical data Dors dug out,” Yugo said a bit
defensively. “That's solid.”
“I don't doubt it. Still ... ”
“Look, we've got over twelve thousand years of hard facts. I built the model on that.”
“I have a feeling what we're missing isn't subtle.”
Most collapses were not from abstruse causes. In the early days of Empire consolidation,
local minor sovereignties flourished, then died. There were recurrent themes in their
histories.
Again and again, star-spanning realms collapsed under the weight of excessive taxation.
Sometimes the taxes supported mercenary armies which defended against neighbors, or which
simply kept domestic order against centrifugal forces. Whatever the ostensible cause of
taxes, soon enough the great cities became depopulated, as people fled the tax collectors,
seeking “rural peace.”
But why did they do that spontaneously?
“People.” Hari sat up suddenly. “That's what we're missing.”
“Huh? You proved yourself -- remember? the Reductionist Theorem? -- that individuals don't
matter.”
“They don't. But people do. Our coupled equations describe them in the mass, but we don't
know the critical drivers.”
“That's all hidden, down in the data.”
“Maybe not. What if we were big spiders, instead of primates? Would psychohistory look the
same?”
Yugo frowned. “Well ... if the data were the same ... ”
“Data on trade, wars, population statistics? It wouldn't matter whether we were counting
spiders instead of people?”
Yugo shook his head, his face clouding, unwilling to concede a point that might topple
years of work. “It's gotta be there.”
“Your coming in here to get details of what the rich and famous do at their levels --
where's that in the equations?”
Yugo's mouth twisted, irked now. “That stuff, it doesn't matter.”
“Who says?”
“Well, history -- ”
“Is written by the winners, true enough. But how do the great generals get men and women
to march through freezing mud? When won't they march?”
“Nobody knows.”
“We need to know. Or rather, the equations do.”
“How?”
“I don't know.”
“Go to the historians?”
Hari laughed. He shared Dors' contempt for most of her profession. The current fashion in
the study of the past was a matter of taste, not data.
He had once thought that history was simply a matter of grubbing in musty cyberfiles.
Then, if Dors would show him how to track down data -- whether encoded in ancient ferrite
cylinders or polymer blocks or strandware -- then he would have a firm basis for
mathematics. Didn't Dors and other historians simply add one more brick of knowledge to an
ever-growing monument?
The current style, though, was to marshal the past into a preferred flavor. Factions
fought over the antiquity, over “their” history vs. “ours.” Fringes flourished. The
“spiral-centric” held that historical forces spread along spiral arms, whereas the
“Hub-focused” maintained that the Galactic Center was the true mediating agency for
causes, trends, movements, evolution. Technocrats contended with Naturals, who felt that
innate human qualities drove change.
Among myriad facts and footnotes, specialists saw present politics mirrored in the past.
As the present fractured and transfigured, there seemed no point of reference outside
history itself -- an unreliable platform indeed, especially when one realized how many
mysterious gaps there were in the records. All this seemed to Hari to be more fashion than
foundation. There was no uncontested past.
What contained the centrifugal forces of relativism -- let me have my viewpoint and you
can have yours -- was an arena of broad agreement. Most people generally held that the
Empire was good, overall. That the long periods of stasis had been the best times, for
change always cost someone. That above the competing throng, through the factions shouting
what were essentially family stories at each other, there was worth in comprehending where
humanity had passed, what it had done.
But there agreement stopped. Few seemed concerned with where humanity, or even the Empire,
was going. He had come to suspect that the subject was ignored, in favor of
your-history-against-mine, because most historians unconsciously dreaded the future. They
sensed the decline in their souls and knew that over the horizon lay not yet another
shift-then-stasis but a collapse.
“So what do we do?” Hari realized that Yugo had said this twice now. He had drifted off
into reverie.
“I ... don't know.”
“Add another term for basic instincts?”
Hari shook his head. “People don't run on instinct. But they do behave like people -- like
primates, I suppose.”
“So ... we should look into that?”
Hari threw up his hands. “I confess. I feel that this line of logic is leading somewhere
-- but I can't see the end of it.”
Yugo nodded, grinned. “It'll come out when it's ripe.”
“Thanks. I'm not the best of collaborators, I know. Too moody.”
“Hey, never mind. Gotta think out loud sometimes, is all.”
“Sometimes I'm not sure I'm thinking at all.”
“Lemme show you the latest, huh?” Yugo liked to parade his inventions, and Hari sat back
as Yugo accessed the office holo and patterns appeared in midair. Equations hung in space,
3D-stacked and each term color-coded.
So many! They reminded Hari of birds, flocking in great banks.
Psychohistory was basically a vast set of interlocked equations, following the variables
of history. It was impossible to change one and not vary any other. Alter population and
trade changed, along with modes of entertainment, sexual mores, and a hundred other
factors.
Some were undoubtedly unimportant, but which? History was a bottomless quarry of factoids,
meaningless without some way of winnowing the hail of particulars. That was the essential
first task of any theory of history -- to find the deep variables.
“Post-diction rates -- presto!” Yugo said, his hand computer suspending in air 3D graphs,
elegantly arrayed. “Economic indices, variable-families, the works.”
“What eras?” Hari asked.
“Third millennia to seventh, G.E.”
The multidimensional surfaces representing economic variables were like twisted bottles
filled with -- as Yugo time-stepped them -- sloshing fluids. The liquids of yellow and
amber and virulent red flowed around and through each other in a supple, slow dance. Hari
was perpetually amazed at how beauty arose in the most unlikely ways from mathematics.
Yugo had plotted abstruse econometric quantities, yet in the gravid sway of centuries they
made delicate arabesques.
“Surprisingly good agreement,” Hari allowed. The yellow surfaces of historical data merged
cleanly with the other color skins, fluids finding curved levels. “And covering four
millennia! No infinities?”
“That new renormalization scheme blotted them out.”
“Excellent! The middle Galactic Era data is the most solid, too, correct?”
“Yeah. The politicians got into the act after the seventh millennium. Dors is helpin' me
filter out the garbage.”
Hari admired the graceful blending of colors, ancient wine in transfinite bottles.
The psychohistorical rates linked together strongly. History was not at all like a sturdy
steel edifice rigidly spanning time; it rather more resembled a rope bridge, groaning and
flexing with every footfall. This “strong coupling dynamic” led to resonances in the
equations, wild fluctuations, even infinities. Yet nothing really went infinite in
reality, so the equations had to be fixed. Hari and Yugo had spent many years eliminating
ugly infinites. Maybe their goal was in sight.
“How do the results look if you simply run the equations forward, past the seventh
millennium?” Hari asked.
“Oscillations build up,” Yugo admitted.
Feedback loops were scarcely new. Hari knew the general theorem, ancient beyond measure:
If all variables in a system are rightly coupled, and you can change one of them precisely
and broadly, then you can indirectly control all of them. The system could be guided to an
exact outcome through its myriad internal feedback loops. Spontaneously, the system
ordered itself -- and obeyed.
History, of course, obeyed no one. But for eras such as the fourth to seventh millennium,
somehow the equations got matters right. Psychohistory could “post-diet” history.
In truly complex systems, how adjustments occur lay beyond the human complexity horizon,
beyond knowing -- and most important, not worth knowing.
But if the system went awry, somebody had to get down in the guts of it and find the
trouble. “Any ideas? Clues?”
Yugo shrugged. “Look at this.”
The fluids lapped at the walls of the bottles. More warped volumes appeared, filled with
brightly colored data-liquids. Hari watched as tides swept through the burnt-orange
variable-space, driving answering waves in the purple layers nearby. Soon the entire bob
showed furiously churning turbulence.
“So the equations fail,” Hari said.
“Yeah, big time, too. The grand cycles last about a hundred and twenty-five years. But
smoothing out events shorter than eighty years gives a steady pattern. See -- ”
Hari watched turbulence build like a hurricane churning a multicolored ocean.
Yugo said, “That takes away scatter due to 'generational styles,' Dors calls it. I can
take the Zones that consciously increased human lifespan. I time-step the equations
forward, great -- but then I run out of data. How come? I mine the history some, and it
turns out those societies didn't last long.”
Hari shook his head. “You're sure? I'd imagine increasing the average age would bring a
little wisdom into the picture.”
“Not so! I looked deeper and found that when the lifespan reached the social cycle time,
usually about a hundred and ten Standard Years, instability rose. Whole planets had wars,
depressions, general social illnesses.”
Hari frowned. “That effect -- is it known?”
“Don't think so.”
“This is why humans reached a barrier in improving their longevity? Society breaks down,
ending the progress?”
“Yeah.”
Yugo wore a small, tight smile, by which Hari knew that he was rather proud of this
result. “Growing irregularities, building to -- chaos.”
This was the deep problem they had not mastered. “Damn!” Hari had a gut dislike of
unpredictability.
Yugo gave Hari a crooked smile. “On that one, boss, I got no news.”
“Don't worry,” Hari said cheerfully, though he didn't feel it. “You've made good progress.
Remember the adage -- the Imperium wasn't built in a day.”
“Yeah, but it seems to be fallin' apart plenty fast.”
They seldom mentioned the deep-seated motivation for psychohistory: the pervasive anxiety
that the Empire was declining, for reasons no one knew. There were theories aplenty, but
none had predictive power. Hari hoped to supply that. Progress was infuriatingly slow.
Yugo was looking morose. Hari got up, came around the big desk, and gave Yugo a gentle
slap on the back. “Cheer up! Publish this result.”