Jonathan Strahan - The Best Science Fiction and Fantasy of the Year. Volume 10

I am starting to sense an impasse. Can we honestly go through this all over again with our next publication, and the one after? The thought of that leaves me drained. We have the tools for the next phase of our work, so why not push ahead with the follow-up study, and fold the results of that back into the present paper? Steal a march on our competitors, and dazzle our referee with the sheer effortless audacity of our work?

I think so.

THE NEXT DAY I set up the sparrowhawk.

I need hardly add that it is not a real sparrowhawk. Designed for us by our colleagues at the robotics laboratory, it is a clever, swift-moving drone. It has wings and a tail and its flight characteristics are similar to those of a real bird. It has synthetic feathers, a plastic bill, large glassy eyes containing swivel-mounted cameras. To the human eye, it looks a little crude and toy-like – surely too caricatured to pass muster. But the sparrowhawk’s visual cues have been exaggerated very carefully. From a starling’s point of view, it is maximally effective, maximally terrifying. It lights up all the right fear responses.

Come the roost, I set down a folding deck chair, balance the laptop in my lap, stub my gloved fingers onto the scuffed old keyboard, with half the letters worn away, and I watch the spectacle. The sparrowhawk whirrs from the roof of the 4WD, soars into the air, darts forward almost too quickly for my own eyes to track.

It picks a spot in the murmuration and arcs in like a guided missile. The murmuration cleaves, twists, recombines.

The sparrowhawk executes a hairpin turn and returns for the attack. It skewers through the core of the flock, jack-knifes its scissor wings, zig-zags back. It makes a low electric hum. Some birds scatter from the periphery, but the murmuration as a whole turns out to be doggedly persistent, recognising on some collective level that the sparrowhawk cannot do it any real damage, only picking off its individual units in trifling numbers.

The sparrowhawk maintains its bloodless attack. The murmuration pulses, distends, contracts, its fluctuations on the edge of chaos, like a fibrillating heart. I think of the sparrowhawk as a surgeon, drawing a scalpel through a vital organ, but the tissue healing faster than the blade can cut.

Never mind – the point is not to do harm, but to study the threat response. And by the time the sparrowhawk’s batteries start to fade, I know that our data haul will be prodigious.

I can barely sleep with anticipation.

BUT OVERNIGHT,THERE’S a power-outage. The computers crash, the data crunching fails. We run on the emergency generator for a little while, then the batteries. Come morning I drive out in the 4WD, open the little door at the base of the tower, and climb the clattery metal ladder up the inside. Inside there are battery-operated lights, but no windows in the tower itself. The ladder goes up through platforms, each a little landing, before swapping over the other side. Heights are not my thing, but it’s just about within my capabilities to go all the way to the top without getting seriously sweaty palms or stomach butterflies.

At the top, I come out inside the housing of the turbine. It’s a rectangular enclosure about the size of our generator shed. I can just about stand up in it, moving around the heavy electrical machinery occupying most of the interior space. At one end, a thick shaft goes out through the housing to connect to the blades.

The turbine is complicated, but fortunately only a few things tend to go wrong with it. There are electrical components, similar to fuses, which tend to burn out more often than they should. We keep a supply of them up in the housing, knowing how likely it is that they will need swapping out. I am actually slightly glad to see that it is one of the fuses that has gone, because at least there is no mystery about what needs to be done. I have fixed them so many times, I could do it in my sleep.

I open the spares box. Only three left in it, and I take one of them out now. I swap the fuse, then reset the safety switches. After a few moments, the blades unlock and begin to grind back into motion. The electrical gauges twitch, showing that power is being sent back to our equipment. Not much wind today, but we only need a few kilowatts.

Job done.

I think of starting down, but having overcome my qualms to get this high, I cannot resist the opportunity to poke my head out of the top. At the back of the electrical gear is a small ladder which leads to an access hatch in the roof of the housing.

I go up the short steps of the ladder, undo the catches, and heave open the access hatch.

My knees wobble a bit. I push my head through the hatch, like a tank commander. I look around. There’s a rubberised walkway on top, and a set of low handrails, so in theory I could go all the way out and stand on top of the housing. But I’ve never done that, and I doubt that I would ever have the nerve.

Still with only my head jutting out, I look back at the hut, a huddle of pale rectangles. The perimeter circle is hard to trace from this elevation, but eventually I glimpse the spaced-out sentinels of the tripods, with the scratchy traces of my own wheel tracks between them. Then I pivot around and try to pick out the causeway. But it’s harder to follow than I expect, seeming to abandon itself in a confusion of marsh and bog. I squint to the horizon, looking for a trace of its continuation.

Strange how some things are clearer to the eye at ground level, than they are from the air.

Birds must know this in their bones.

THE NEXT DAY, the computers running again, I squeeze our data until it bleeds science. With the vector tracking, we can trace the response to the sparrowhawk across all possible interaction lengths. Remarkable to see how effectively the ‘news’ of the sparrowhawk’s arrival is disseminated through that vast assemblage of birds.

Because there is no centralised order, the murmuration is best considered as a scale-free network. The internet is like that, and so is the human brain. Scale-free networks are robust against directed attacks. There is no single hub which is critical to the function of the whole, but rather a tangle of distributed pathways, no one of which is indispensible. On the other hand, the scale-free paradigm does not preclude the existence of those vector domains I mentioned earlier. Just as the internet has its top-level domains, so the brain has its hierarchies, its functional modules.

Would it be a leap too far to start thinking of the murmuration as hosting some level of modular organisation?

I jot down some speculative notes. No harm in sleeping on them. In the meantime, though, I write up the sparrowhawk results in as dry and unexciting manner as I can manage, downplaying any of the intellectual thrill I feel. Passive voice all the way. The sparrowhawk was prepared for remote control. Standard reduction methods were used in the data analysis. The murmuration was observed from twenty spatially separated viewing positions – see Fig. 3.

The way to do science is never to sound excited by it, never to sound involved, never to sound as if this is something done by people, with lives and loves and all the usual hopes and fears.

I send the latest version of the paper back to the journal, and cross my fingers.

I OPEN THE glove compartment and take out the latest version of the paper. I skim it quickly, then go back through some of the more problematic passages with the yellow highlighter, before adding more detailed notes in the margin. My initial optimism quickly turns to dismay. Why in hell have they opened up this whole other can of worms? I squint at an entire new section of the paper, hardly believing my eyes.

Sparrowhawks? Robot sparrowhawks? And pages of graphs and histograms and paragraphs of analysis, all springing from work which was not even foreshadowed in the original paper?