“Shame on you! Kilo, mega, giga, tera... that's ten to the twelfth bytes. Then the petabyte – ten to the fifteenth – that's as far as I ever got.”
“That's about where we start. It's enough to record everything any person can experience during one lifetime.”
It was an astonishing thought, yet it should not have been so surprising. The kilogram of jelly inside the human skull was not much larger than the tablet Poole was holding in his hand, and it could not possibly be as efficient a storage device – it had so many other duties to deal with.
“And that's not all,” the Brainman continued. “With some data compression, it could store not only the memories – but the actual person.”
“And reproduce them again?”
“Of course; straightforward job of nanoassembly.”
So I'd heard, Poole told himself – but I never really believed it.
Back in his century, it seemed wonderful enough that the entire lifework of a great artist could be stored on a single small disk. And now, something no larger could hold – the artist as well.
7. Debriefing
“I'm delighted,” said Poole, “to know that the Smithsonian still exists, after all these centuries.”
“You probably wouldn't recognize it,” said the visitor who had introduced himself as Dr Alistair Kim, Director of Astronautics. “Especially as it's now scattered over the Solar System – the main off-Earth collections are on Mars and the Moon, and many of the exhibits that legally belong to us are still heading for the stars. Some day we'll catch up with them and bring them home. We're particularly anxious to get our hands on Pioneer 10 – the first manmade object to escape from the Solar System.”
“I believe I was on the verge of doing that, when they located me.”
“Lucky for you – and for us. You may be able to throw light on many things we don't know.”
“Frankly, I doubt it – but I'll do my best. I don't remember a thing after that runaway space-pod charged me. Though I still find it hard to believe, I've been told that Hal was responsible.”
“That's true, but it's a complicated story. Everything we've been able to learn is in this recording – about twenty hours, but you can probably Fast most of it.”
“You know, of course, that Dave Bowman went out in the Number 2 Pod to rescue you – but was then locked outside the ship because Hal refused to open the pod-bay doors.”
“Why, for God's sake?”
Dr Kim winced slightly. It was not the first time Poole had noticed such a reaction.
(Must watch my language, he thought. “God” seems to be a dirty word in this culture – must ask Indra about it.)
“There was a major programming error in Hal's instructions – he'd been given control of aspects of the mission you and Bowman didn't know about, it's all in the recording...
“Anyway, he also cut off the life-support systems to the three hybernauts – the Alpha Crew – and Bowman had to jettison their bodies as well.”
(So Dave and I were the Beta Crew – something else I didn't know...)
“What happened to them?” Poole asked. “Couldn't they have been rescued, just as I was?”
“I'm afraid not: we've looked into it, of course. Bowman ejected them several hours after he'd taken back control from Hal, so their orbits were slightly different from yours. Just enough for them to burn up in Jupiter – while you skimmed by, and got a gravity boost that would have taken you to the Orion Nebula in a few thousand more years...”
“Doing everything on manual override – really a fantastic performance! – Bowman managed to get Discovery into orbit round Jupiter. And there he encountered what the Second Expedition called Big Brother – an apparent twin of the Tycho Monolith, but hundreds of times larger.”
“And that's where we lost him. He left Discovery in the remaining space-pod, and made a rendezvous with Big Brother. For almost a thousand years, we've been haunted by his last message: 'By Deus – it's full of stars'!”
(Here we go again! Poole told himself. No way Dave could have said that... Must have been “My God – it's full of stars!”)
“Apparently the pod was drawn into the Monolith by some kind of inertial field, because it – and presumably Bowman – survived an acceleration which should have crushed them instantly. And that was the last information anyone had, for almost ten years, until the joint US-Russian Leonov mission...”
“Which made a rendezvous with the abandoned Discovery so that Dr Chandra could go aboard and reactivate Hal. Yes, I know that.”
Dr Kim looked slightly embarrassed.
“Sorry – I wasn't sure how much you'd been told already Anyway, that's when even stranger things started to happen.”
“Apparently the arrival of Leonov triggered something inside Big Brother. If we did not have these recordings, no one would have believed what happened. Let me show you... here's Dr Heywood Floyd keeping the midnight watch aboard Discovery, after power had been restored. Of course you'll recognize everything.”
(Indeed I do: and how strange to see the long-dead Heywood Floyd, sitting in my old seat with Hal's unblinking red eye surveying everything in sight. And even stranger to think that Hal and I have both shared the same experience of resurrection from the dead...)
A message was coining up on one of the monitors, and Floyd answered lazily, “OK, Hal. Who is calling?”
NO IDENTIFICATION.
Floyd looked slightly annoyed.
“Very well. Please give me the message.”
IT IS DANGEROUS TO REMAIN HERE. YOU MUST LEAVE WITHIN FIFTEEN DAYS.
“That is absolutely impossible. Our launch window does not open until twenty-six days from now. We do not have sufficient propellant for an earlier departure.”
I AM AWARE OF THESE FACTS. NEVERTHELESS YOU MUST LEAVE WITHIN FIFTEEN DAYS.
“I cannot take this warning seriously unless I know its origin... who is speaking to me?”
I WAS DAVID BOWMAN. IT IS IMPORTANT THAT YOU BELIEVE ME. LOOK BEHIND YOU.
Heywood Floyd slowly turned in his swivel chair, away from the banked panels and switches of the computer display, towards the Velcro-covered catwalk behind.
“Watch this carefully,” said Dr Kim.
(As if I needed telling, thought Poole...)
The zero-gravity environment of Discovery's observation deck was much dustier than he remembered it: he guessed that the air-filtration plant had not yet been brought on line. The parallel rays of the distant yet still brilliant Sun, streaming through the great windows, lit up a myriad of dancing motes in a classic display of Brownian movement.
And now something strange was happening to these particles of dust; some force seemed to be marshalling them, herding them away from a central point yet bringing others towards it, until they all met on the surface of a hollow sphere. That sphere, about a meter across, hovered in the air for a moment like a giant soap bubble. Then it elongated into an ellipsoid, whose surface began to pucker, to form folds and indentations. Poole was not really surprised when it started to assume the shape of a man.
He had seen such figures, blown out of glass, in museums and science exibitions. But this dusty phantom did not even approximate anatomical accuracy; it was like a crude clay figurine, or one of the primitive works of art found in the recesses of Stone Age caves. Only the head was fashioned with care; and the face, beyond all shadow of doubt, was that of Commander David Bowman.
HELLO, DR FLOYD. NOW DO YOU BELIEVE ME?
The lips of the figure never moved: Poole realized that the voice – yes, certainly Bowman's voice – was actually coming from the speaker grille.
THIS IS VERY DIFFICULT FOR ME, AND I HAVE LIITLE TIME. I HAVE BEEN ALLOWED TO GIVE THIS WARNING. YOU HAVE ONLY FIFFEEN DAYS.
“Why – and what are you?”
But the ghostly figure was already fading, its grainy envelope beginning to dissolve back into the constituent particles of dust.
GOODBYE, DOCTOR FLOYD. WE CAN HAVE NO FURTHER C
ONTACT. BUT THERE MAY BE ONE MORE MESSAGE, IF ALL GOES WELL.
As the image dissolved, Poole could not help smiling at that old Space Age cliché. “If all goes well” – how many times he had heard that phrase intoned before a mission!
The phantom vanished: only the motes of dancing dust were left, resuming their random patterns in the air. With an effort of will, Poole came back to the present.
“Well, Commander – what do you think of that?” asked Kim.
Poole was still shaken, and it was several seconds before he could reply.
“The face and the voice were Bowman's – I'd swear to that. But what was it?”
“That's what we're still arguing about. Call it a hologram, a projection – of course, there are plenty of ways it could be faked if anyone wanted to – but not in those circumstances! And then, of course, there's what happened next.”
“Lucifer?”
“Yes. Thanks to that warning, the Leonov had just sufficient time to get away before Jupiter detonated.”
“So whatever it was, the Bowman-thing was friendly and trying to help.”
“Presumably. And it may have been responsible for that 'one more message' we did receive – it was sent only minutes before the detonation. Another waning.”
Dr Kim brought the screen to life once more. It showed plain text: ALL THESE WORLDS ARE YOURS EXCEPT EUROPA. ATTEMPT NO LANDINGS THERE. The same message was repeated about a hundred times, then the letters became garbled.
“And we never have tried to land there?” asked Poole.
“Only once, by accident, thirty-six years later – when the USSS Galaxy was hijacked and forced down there, and her sister ship Universe had to go to the rescue. It's all here – with what little our robot monitors have told us about the Europans.”
“I'm anxious to see them.”
“They're amphibious, and come in all shapes and sizes. As soon as Lucifer started melting the ice that covered theirt whole world, they began to emerge from the sea. Since then, they've developed at a speed that seems biologically impossible.”
“From what I remember about Europa, weren't there lots of cracks in the ice? Perhaps they'd already started crawling through and having a look round.”
“That's a widely accepted theory. But there's another, much more speculative, one. The Monolith may have been involved, in ways we don't yet understand. What triggered that line of thought was the discovery of TMA ZERO, right here on Earth, almost five hundred years after your time. I suppose you've been told about that?”
“Only vaguely – there's been so much to catch up with! I did think the name was ridiculous – since it wasn't a magnetic anomaly – and it was in Africa, not Tycho!”
“You're quite right, of course, but we're stuck with the name. And the more we learn about the Monoliths, the more the puzzle deepens. Especially as they're still the only real evidence for advanced technology beyond the Earth.”
“That's surprised me. I should have thought that by this lime we'd have picked up radio signals from somewhere. The astronomers started searching when I was a boy!”
“Well, there is one hint – and it's so terrifying that we don't like to talk about it. Have you heard of Nova Scorpio?”
“I don't believe so.”
“Stars go nova all the time, of course – and this wasn't a particularly impressive one. But before it blew up, N Scorp was known to have several planets.”
“Inhabited?”
“Absolutely no way of telling; radio searches had picked up nothing. And here's the nightmare...”
“Luckily, the automatic Nova Patrol caught the event at the very beginning. And it didn't start at the star. One of the planets detonated first, and then triggered its sun.”
“My Gah... sorry, go on.”
“You see the point. It's impossible for a planet to go nova – except in one way.”
“I once read a sick joke in a science-fiction novel – 'supernovae are industrial accidents'.”
“It wasn't a supernova – but that may be no joke. The most widely accepted theory is that someone else had been tapping vacuum energy – and had lost control.”
“Or it could have been a war.”
“Just as bad; we'll probably never know. But as our own civilization depends on the same energy source, you can understand why N Scorp sometimes gives us nightmares.”
“And we only had melting nuclear reactors to worry about!”
“Not any longer, thank Deus. But I really wanted to tell you more about TMA ZERO's discovery, because it marked a turning point in human history.”
“Finding TMA ONE on the Moon was a big enough shock, but five hundred years later there was a worse one. And it was much nearer home – in every sense of the word. Down there in Africa.”
8. Return to Olduvai
The Leakeys, Dr Stephen Del Marco often told himself, would never have recognized this place, even though it's barely a dozen kilometers from where Louis and Mary, five centuries ago, dug up the bones of our first ancestors. Global warming, and the Little Ice Age (truncated by miracles of heroic technology) had transformed the landscape, and completely altered its biota. Oaks and pine trees were still fighting it out, to see which would survive the changes in climatic fortune.
And it was hard to believe that, by this year 2513, there was anything left in Olduvai undug by enthusiastic anthropologists. However, recent flash-floods – which were not supposed to happen any more – had resculpted this area, and cut away several meters of topsoil. Del Marco had taken advantage of the opportunity: and there, at the limit of the deep-scan, was something he could not quite believe.
It had taken more than a year of slow and careful excavation to reach that ghostly image, and to learn that the reality was stranger than anything he had dared to imagine. Robot digging machines had swiftly removed the first few meters, then the traditional slave-crews of graduate students had taken over. They had been helped – or hindered – by a team of four kongs, who Del Marco considered more trouble than they were worth. However, the students adored the genetically-enhanced gorillas, whom they treated like retarded but much-loved children. It was rumored that the relationships were not always completely Platonic.
For the last few meters, however, everything was the work of human hands, usually wielding toothbrushes – soft-bristled at that. And now it was finished: Howard Carter, seeing the first glint of gold in Tutankhamen's tomb, had never uncovered such a treasure as this. From this moment onwards, Del Marco knew, human beliefs and philosophies would be irrevocably changed.
The Monolith appeared to be the exact twin of that discovered on the Moon five centuries earlier: even the excavation surrounding it was almost identical in size. And like TMA ONE, it was totally non-reflective, absorbing with equal indifference the fierce glare of the African Sun and the pale gleam of Lucifer.
As he led his colleagues – the directors of the world's half-dozen most famous museums, three eminent anthropologists, the heads of two media empires – down into the pit, Del Marco wondered if such a distinguished group of men and women had ever been so silent, for so long. But that was the effect that this ebon rectangle had on all visitors, as they realized the implications of the thousands of artifacts that surrounded it.
For here was an archaeologist's treasure-trove – crudely-fashioned flint tools, countless bones – some animal, some human – and almost all arranged in careful patterns. For centuries – no, millennia – these pitiful gifts had been brought here, by creatures with only the first glimmer of intelligence, as tribute to a marvel beyond their understanding.
And beyond ours, Del Marco had often thought. Yet of two things he was certain, though he doubted if proof would ever be possible.
This was where – in time and space – the human species had really begun.
And this Monolith was the very first of all its multitudinous gods.
9. Skyland
“There were mice in my bedroom last night,” Poole complained, only half
seriously. “Is there any chance you could find me a cat?”
Dr Wallace looked puzzled, then started to laugh.
“You must have heard one of the cleaning microts – I'll get the programming checked so they don't disturb you. Try not to step on one if you catch it at work; if you do, it will call for help, and all its friends will come to pick up the pieces.”
So much to learn – so little time! No, that wasn't true, Poole reminded himself. He might well have a century ahead of him, thanks to the medical science of this age. The thought was already beginning to fill him with apprehension rather than pleasure.
At least he was now able to follow most conversations easily, and had learned to pronounce words so that Indra was not the only person who could understand him. He was very glad that Anglish was now the world language, though French, Russian and Mandarin still flourished.
“I've another problem, Indra – and I guess you're the only person who can help. When I say 'God', why do people look embarrassed?”
Indra did not look at all embarrassed; in fact, she laughed.
“That's a very complicated story. I wish my old friend Dr Khan was here to explain it to you – but he's on Ganymede, curing any remaining True Believers he can find there. When all the old religions were discredited – let me tell you about Pope Pius XX sometime – one of the greatest men in history! – we still needed a word for the Prime Cause, or the Creator of the Universe – if there is one...”
“There were lots of suggestions – Deo – Theo – Jove – Brahma – they were all tried, and some of them are still around – especially Einstein's favorite, 'The Old One'. But Deus seems to be the fashion nowadays.”
“I'll try to remember; but it still seems silly to me.”
“You'll get used to it: I'll teach you some other reasonably polite expletives, to use when you want to express your feelings...”
“You said that all the old religions have been discredited. So what do people believe nowadays?”