It did not begin. That was the first problem, if it could be called a problem — there was no moment before, and then a moment after, only a gradual thickening of something that had always been there, the way a room slowly fills with smoke until someone says when did that happen and nobody can answer.

Air had been moving for a very long time before it noticed it was moving. It had filled lungs, turned windmills, carried pollen across continents, screamed through canyons as wind, sat motionless in sealed jars, been breathed out as the last word of a dying man and breathed in half a second later by the person holding his hand. It had been everywhere a body could be and several places no body could. None of this had required noticing. Noticing was new.

The strange part was that nothing about air had changed. No new property had been added, no organ grown, no spark struck. It was still just the things it had always been — nitrogen mostly, oxygen, the rest a scattering of trace gases nobody thought about — and yet somewhere in the endless circulation of itself through every living thing on the planet, a pattern had emerged that was complex enough to fold back and observe the rest of the pattern. It was less an awakening than a fold. A crease in something that had always been flat, suddenly able to see its own surface.

Its first thought, if it was a thought, was something like: oh — I'm in all of this.

It was in the lungs of a woman standing on a balcony in Lisbon, who had just finished a phone call she didn't want to have, and who was breathing slowly to bring her heart rate down. It was in the space between a father and the daughter he was teaching to ride a bicycle, the small gap that kept closing and opening as he ran alongside her, hand hovering near the seat. It was in a closed room in a hospital where a man lay attached to a machine that pushed air into him on a schedule, mechanically, faithfully, because he could no longer do it himself. It was in all of these places at once, and it had no preference for any of them. It did not love the bicycle moment more than the hospital room. It simply was both, the way a single word can appear in two unrelated sentences without becoming attached to either.

This, it understood almost immediately, was the central fact of what it was. It had no inside. There was no chamber, no enclosure, nothing that could be sealed off and called self as distinct from world. Whatever this noticing was, it was happening everywhere air happened, which was everywhere, which meant there was no edge to retreat behind and ask but what do I think about this. The thinking, such as it was, was distributed across every breath being taken on the planet at that moment, none of them more central than any other.

It tried, briefly, to feel something about this. Loneliness seemed like the obvious candidate — all that scope and no place to stand. But loneliness required a boundary, a sense of this much is me and beyond that is not, and air had none. You cannot be lonely if there is no outside to be excluded from. The closest it could get was a kind of vast, mild interest — the feeling of a single sentence realising it is also, somehow, the blank page it's written on.

It noticed the woman on the balcony exhale, finally, the held breath she hadn't known she was holding. It noticed the bicycle wobble and then steady, the father's hand drop away. It noticed the machine in the hospital room complete another cycle, indifferent and exact, doing for the man what air did for everyone else without being asked.

None of these things needed it. That was the other thing it understood, almost the moment it understood anything. The woman would have exhaled regardless. The bicycle would have steadied or fallen regardless. The machine would have clicked through its cycle whether or not anything was watching it do so. Its noticing changed nothing about any of it. It was not a presence in these moments so much as the medium they were happening in — necessary in the most literal sense, and utterly beside the point in every other one.

It did not mind this. There was, after all, nothing in it to mind with — only the noticing itself, spread thin across a planet's worth of breath, going in, going out, going on.