“I can answer that one,” Hiram said, still pacing. “I grew up with enough bad pop-science shows. A wormhole is a shortcut through a fourth dimension. You have to cut a chunk out of our three-dimensional space and join it onto another such chunk, over in Brisbane.”
Bobby raised an eyebrow at David.
David said carefully, “It’s a little more complicated. But he’s more right than wrong. A wormhole mouth is a sphere, floating freely in space. A three-dimensional excision. If we succeed with the expansion, for the first time we’ll be able to see our wormhole mouth with a hand lens, anyhow…” The countdown clock was down to a single digit. David said, “Heads up, everybody. Here we go.”
The ripples of conversation in the room died away, and everyone turned to the digital clock.
The count reached zero.
And nothing happened.
There were events, of course. The track counter racked up a respectable score, showing heavy and energetic particles passing through the detector array, the debris of an exploded wormhole. The array’s pixel elements, each firing individually as a particle passed through them, could later be used to trace the paths of debris fragments in three dimensions — paths which could then be reconstructed and analysed.
Lots of data, lots of good science. But the big wall SoftScreen remained blank. No signal.
David suppressed a sigh. He opened up the logbook and entered details of the run in his round, neat hand; around him his technicians began equipment diagnostics.
Hiram looked into David’s face, at the empty ’Screen, at the technicians. “Is that it? Did it work?”
Bobby touched his father’s shoulder. “Even I can tell it didn’t, Dad.” He pointed to the prime-number test sequence. It had frozen on thirteen. “Unlucky thirteen,” murmured Bobby.
“Is he right? David, did you screw up again?”
“This wasn’t a failure. Just another test. You don’t understand science, Father. Now, when we run the analysis and learn from this…”
“Jesus Christ on a bike! I should have left you rotting in bloody Oxford. Call me when you have something.” Hiram, shaking his head, stalked from the room.
When he left, the feeling of relief in the room was palpable. The technicians-silver-haired particle physicists all, many of them older than Hiram, some of them with distinguished careers beyond OurWorld — started to file out.
When they’d gone, David sat before a SoftScreen to begin his own follow-up work.
He brought up his favoured desktop metaphor. It was like a window into a cluttered study, with books and documents piled in untidy heaps on the floor and shelves and tables, and with complex particle-decay models hanging like mobiles from the ceiling. When he looked around the “room,” the point at the focus of his attention expanded, opening out more detail, the rest of the room blurring to a background wash. He could “pick up” documents and models with a fingertip, rummaging until he found what he wanted, exactly where he’d left it last time.
First he had to check for detector pixel faults. He began passing the vertex detector traces into the analogue signal bus, and pulled out a blow-up overview of various detector slabs. There were always random failures of pixels when some especially powerful particle hit a detector element. But, though some of the detectors had suffered enough radiation damage to require replacement, there was nothing serious for now.
Humming, immersed in the work, he prepared to move on -
“Your user interface is a mess.”
David, startled, turned. Bobby was still here: still leaning, in fact, against his table.
“Sorry,” David said. “I didn’t mean to turn my back.” How odd that he hadn’t even noticed his brother’s continued presence.
Bobby said now, “Most people use the Search Engine.”
“Which is irritatingly slow, prone to misunderstanding and which anyhow masks a Victorian-era hierarchical data-storage system. Filing cabinets. Bobby, I’m too dumb for the Search Engine. I’m just an unevolved ape who likes to use his hands and eyes to find things. This may look a mess, but I know exactly where everything is.”
“But still, you could study this particle-track stuff a lot better as a virtual. Let me set up a trial of my latest Mind’sEye prototype for you. We can reach more areas of the brain, switch more quickly…”
“And all without the need for trepanning.”
Bobby smiled.
“All right,” David said. “I’d appreciate that.”
Bobby’s gaze roamed around the room in that absent, disconcerting way of his. “Is it true? What you told Dad — that this isn’t a failure, but just another step?”
“I can understand Hiram’s impatience. After all he’s paying for all of this.”
“And he’s working under commercial pressure,” Bobby said. “Already some of his competitors are claiming to have DataPipes of comparable quality to Hiram’s. It surely won’t be long before one of them comes up with the idea of a remote viewer — independently, if nobody’s leaked it already.”
“But commercial pressure is irrelevant,” David said testily. “A study like this has to proceed at its own pace. Bobby, I don’t know how much you know about physics.”
“Assume nothing. Once you have a wormhole, what’s so difficult about expanding it?”
“It’s not as if we’re building a bigger and better car. We’re trying to push spacetime into a form it wouldn’t naturally adopt. Look, wormholes are intrinsically unstable. You know that to keep them open at all we have to thread them with exotic matter.”
“Antigravity.”
“Yes. But the tension in the throat of a wormhole is gigantic. We’re constantly balancing one huge pressure against another.” David balled his fists and pressed them against each other, hard. “As long as they are balanced, fine. But the smallest perturbation and you lose everything.” He let one fist slide over the other, breaking the equilibrium he’d established. “And that fundamental instability grows worse with size. What we’re attempting is to monitor conditions inside the wormhole, and adjust the pumping of exotic matter-energy to compensate for fluctuations.” He pressed his fists against each other again; this time, as he jiggled the left back and forth, he compensated with movements of his right, so his knuckles stayed pressed together.
“I get it,” Bobby said. “As if you’re threading the wormhole with software.”
“Or with a smart worm.” David smiled. “Yes. It’s very processor-intensive. And so far, the instabilities have been too rapid and catastrophic to deal with.
“Look at this.” He reached to his desktop and, with the touch of a fingertip, he pulled up a fresh view of a particle cascade. It had a strong purple trunk — the colour showing heavy ionization — with clusters of red jets, wide and narrow, some straight, others curved. He tapped a key, and the spray rotated in three dimensions; the software suppressed foreground elements to allow details of the jet’s inner structure to become visible. The central spray was surrounded by numbers showing energy, momentum and charge readings. “We’re looking at a high-energy, complex event here, Bobby. All this exotic garbage spews out before the wormhole disappears completely.” He sighed. “It’s like trying to figure out how to fix a car by blowing it up and combing through the debris.
“Bobby, I was honest with Father. Every trial is an exploration of another corner of what we call parameter space, as we try different ways of making our wormhole viewers wide and stable. There are no wasted trials; every time we proceed we learn something. In fact many of my tests are negative — I actually design them to fail. A single test which proves some piece of theory wrong is more valuable than a hundred tests showing that idea might be true. Eventually we’ll get there… or else we’ll prove Hiram’s dream is impossible, with present-day technology.”