The Light of Other Days. Stephen Baxter

She learned that the ‘Casimir effect’ was related to the virtual particles she had seen sparkling into and out of existence. In the narrow gap between the atomic shells, because of resonance effects, only certain types of particles would be permitted to exist. And so those gaps were emptier than ‘empty’ space, and therefore less energetic.

      This negative-energy effect could give rise, among other things, to antigravity.

      The structure's various levels were starting to spin more rapidly. Small clocks appeared around the engine's image, counting patiently down from ten to nine, eight, seven. The sense of energy gathering was palpable.

      ‘The concentration of energy in the Casimir gaps is increasing,’ Hiram said. ‘We're going to inject Casimir-effect negative energy into the wormholes of the quantum foam. The antigravity effects will stabilize and enlarge the wormholes.

      ‘We calculate that the probability of finding a wormhole connecting Seattle to Brisbane, to acceptable accuracy, is one in ten million. So it will take us some ten million attempts to locate the wormhole we want. But this is atomic machinery and it works bloody fast; even a hundred million attempts should take less than a second…And the beauty of it is, down at the quantum level, links to any place we want already exist: all we have to do is find them.’

      The virtuals’ music was swelling to its concluding chorus. Kate stared as the Frankenstein machine beneath her feet spun madly, glowing palpably with energy.

      And the clocks finished their count.

      There was a dazzling flash. Some people cried out.

      When Kate could see again, the atomic machine, still spinning, was no longer alone. A silvery bead, perfectly spherical, hovered alongside it. A wormhole mouth?

      And the music had changed. The V-Fabs had reached the chant-like chorus of their song. But the music was distorted by a much coarser chanting that preceded the high-quality sound by a few seconds.

      Aside from the music, the room was utterly silent.

      Hiram gasped, as if he had been holding his breath. ‘That's it,’ he said. ‘The new signal you hear is the same performance, but now piped here through the wormhole – with no significant time delay. We did it. Tonight, for the first time in history, humanity is sending a signal through a stable wormhole –’

      Bobby leaned towards Kate and said wryly, ‘The first time, apart from all the test runs.’

      ‘Really?’

      ‘Of course. You don't think he was going to leave this to chance, did you? My father is a showman. But you can't begrudge the man his moment of glory.’

      The giant display showed Hiram was grinning. ‘Ladies and gentlemen – never forget what you've seen tonight. This is the start of the true communications revolution.’

      The applause started slowly, scattered, but rapidly rising to a thunderous climax.

      Kate found it impossible not to join in. I wonder where this will lead, she thought. Surely the possibilities of this new technology – based, after all, on the manipulation of space and time themselves – would not prove limited to simple data transfer. She sensed that nothing would be the same, ever again.

      Kate's eye was caught by a splinter of light, dazzling, somewhere over her head. One of the drones was carrying an image of the rocket ship she'd noticed before. It was climbing into its patch of blue-grey central Asian sky, utterly silently. It looked strangely old-fashioned, an image drifting up from the past rather than the future.

      Nobody else was watching it, and it held little interest for her. She turned away.

      

      Green-red flame billowed into curving channels of steel and concrete. The light pulsed across the steppe towards Vitaly. It was bright, dazzlingly so, and it banished the dim floods that still lit up the booster stack, even the brilliance of the steppe sun. And, before the ship had left the ground, the roar reached him, a thunder that shook his chest.

      Ignoring the mounting pain in his arm and shoulder, the numbness of his hands and feet, Vitaly stood, opened his cracked lips and added his voice to that divine bellow. He always had been a sentimental old fool at such moments.

      But there was much agitation around him. The people here, the rat-hungry, ill-trained technicians and the fat, corrupt managers alike, were turning away from the launch. They were huddling around radio sets and palmtop televisions, jewel-like SoftScreens showing baffling images from America. Vitaly did not know the details, and did not care to know; but it was clear enough that Hiram Patterson had succeeded in his promise, or threat.

      Even as it lifted from the ground, his beautiful bird, this last Molniya, was already obsolete.

      Vitaly stood straight, determined to watch it as long as he could, until that point of light at the tip of the great smoke pillar melted into space.

      …But now the pain in his arm and chest reached a climax, as if some bony hand was clutching there. He gasped. Still he tried to stay on his feet. But now there was a new light, rising all around him, even brighter than the rocket light that bathed the Kazakhstan steppe; and he could stand no longer.

       CHAPTER 2 The Mind'sEye

      As Kate was driven into the grounds, it struck her as a typical Seattle setting: green hills that lapped right down to the ocean, framed under a grey, lowering autumn sky.

      But Hiram's mansion – a giant geodesic dome, all windows – looked as if it had just landed on the hillside, one of the ugliest, most gaudy buildings Kate had ever seen.

      On arrival she handed her coat to a drone. Her identity was scanned – not just a reading of her implants but also, probably, pattern-matching to identify her face, even a non-intrusive DNA sequencing, all done in seconds. Then she was ushered inside by Hiram's robot servants.

      Hiram was working. She wasn't surprised. The six months since the launch of his wormhole DataPipe technology had been his busiest, and OurWorld's most successful, ever, according to the analysts. But he'd be back in time for dinner, said the drone.

      So she was taken to Bobby.

      

      The room was large, the temperature neutral, the walls as smooth and featureless as an eggshell. The light was low, the sound anechoic, deadened. The only furniture was a number of reclined black-leather couches. Beside each of the couches was a small table with a water spigot and a stand for intravenous feeds.

      And here was Bobby Patterson, presumably one of the richest, most powerful young men on the planet, lying alone on a couch in the dark, eyes open but unfocused, limbs limp. There was a metal band around his temples.

      She sat on a couch beside Bobby and studied him. She could see he was breathing, slowly, and the intravenous feed he'd fitted to a socket in his arm was gently supplying his neglected body.

      He was dressed in loose black shirt and shorts. His body, revealed where the loose clothing lay against his skin, was a slab of muscle. But that didn't tell much about his lifestyle; such body sculpting could now be achieved easily through hormone treatments and electrical stimulation. He could even do that while he was lying here, she thought, like a coma victim lying in a hospital bed.

      There was a trace of drool at the corner of his parted lips. She wiped the drool away with a forefinger, and gently pushed the mouth closed.

      ‘Thank you.’

      She turned, startled. Bobby – another Bobby, identically dressed to the first – was standing beside her, grinning. Irritated, she threw a punch at his stomach. Her fist, of course, passed straight through him. He didn't flinch.

      ‘You can see me, then,’ he said.

      ‘I see you.’

      ‘You have retinal and cochlear implants. Yes? This room