No ripple could be seen in the rectangular black pond of my phone, which was lying on the conference table in front of me. Within it, though, beneath its surface, ripples … But the Monday meeting had rules, strict rules, and my phone was silenced. Really, it should have been turned off, but I knew that it was on behind that finger-smeared glass, awaiting my activating caress.

‘Explosion’ was not my first thought. I guessed that a car had hit the building, or one nearby. These Victorian industrial relics all leaned up against each other, and interconnected and overlapped in unexpected ways. Strike one and the whole block might quiver. But it could have been nothing. Without the evidence of the glass in front of me, I might have believed that I had imagined the shock, or that it had taken place within me, a convulsion among my jangling nerves, and I had projected it onto the world.

Even the bubbles were no more than a wisp of proof that an Event had taken place; they were gone now, and no further indications had shown themselves. None of my colleagues had stirred – they were either discussing what to put in the magazine, or looking attentive. As was I. There were no shouts or sirens from the street, not that we’d hear them behind double glazing six storeys up.

But on the phone, though, through that window … Whatever had happened might now be filling that silent shingle with bright reaction. With a touch, I would be able to see if anyone else had heard, or felt, an impact or quake in east London; I would be able to ask that question of the crowd, and see who else was asking it. And I might be able to watch as an event in the world became an Event in the floodlit window-world – the window we use to look in, not out. It was magical seeing real news break online, from the first hesitant, confused notices to the deluge of report and response. An earthquake, a bomb, a celebrity death. And if you scrolled down, reached back, you could find the very first appearance of that Event in your feed or timeline, the threshold – the point where, for you, the Event began, the point at which the world changed a little. Or a lot. In front of me, in real time, the Event would be identified, located, named and photographed. And the real Event would generate shadow events, doppelhappens, mistaken impressions, malicious rumours, overreactions, conspiracy theories. More than merely watching, I would be participating, relaying what I had seen or heard or felt, recirculating the views of others if I thought they deserved it, trimming away error and boosting truth. Journalism, really, in its distributed twenty-first-century form.