A girl I knew at school moved to another town in 1988. I never saw her again. I don't know where she went, what she did with her life, whether she's alive. There was no forwarding address, no email, no profile to search. She left on a Friday, and by Monday she had ceased to exist in any verifiable sense. I was fifteen. This was ordinary.

Before the internet, people disappeared from your life with a regularity that would seem pathological today. Not dramatically — not in the way true crime podcasts mean when they say "disappeared." Quietly. A colleague took a job somewhere else. A friend moved. A neighbour emigrated. A person you spoke to every day became, over the course of a single week, permanently irretrievable. The world absorbed them and offered nothing back.

I keep thinking about how casually we accepted this. The finality of it. You could spend three years sitting next to someone in a classroom, sharing jokes and minor confidences, and then one of you would leave — and that was it. There was no mechanism for reconnection beyond extraordinary effort. You might try directory enquiries, if you remembered their surname and guessed which town they'd landed in. You might write a letter to their old address and hope it was forwarded. More often, you did nothing. The loss barely registered as loss. It was just how things worked.

The infrastructure of connection was laughably thin. Landline telephones required you to know the number, and numbers changed when people moved. Phone books covered local areas. Letters required a postal address. If someone relocated and didn't tell you — and why would they, if you were a casual friend rather than a close one — the connection severed cleanly and permanently. There was no search engine to type their name into. No social graph linking mutual acquaintances. No algorithm to reconnect you. No suggested friends. Just silence, and eventually acceptance.

I think about a specific group of people I worked with in 1993 at a small office in Sheffield. We shared a space five days a week for almost a year. I remember first names, a few surnames, fragments of personality. One woman was saving for a house. A man was obsessed with rally driving. Someone's mother was unwell. These details survive in my memory with surprising clarity, but the people themselves are gone. When the contract ended, we dispersed. No one suggested staying in touch because staying in touch required sustained, deliberate effort — regular phone calls, letters, visits — and we all understood, without saying so, that the relationship did not warrant that level of maintenance. The threshold for sustained contact was much higher than it is now.

This created a strange emotional texture. You accumulated a growing catalogue of people you had genuinely known and would never encounter again. Not estranged. Not deliberately lost. Simply — gone. The butcher's son who moved to Canada. The woman at the next desk who left to have a baby. The friend from university who returned to Malaysia. Each departure was a small, quiet severance. You carried forward a version of them frozen at the moment of last contact, and that version slowly degraded, merging with invention, losing specificity until only an impression remained.

What strikes me now is how much this resembled a kind of low-grade grief that no one acknowledged. Researchers at Psychology Today have described the concept of "commemorative friends" — people who were important to you earlier in life, with the understanding that you might never see or hear from them again. Before the internet, nearly everyone in your life outside your immediate circle was a commemorative friend in waiting. The category was so large it was invisible. You didn't mourn each departure because there were too many of them, and because the culture offered no framework for treating a drifted friendship as a genuine loss. It was simply what happened.

The asymmetry with the present is difficult to overstate. Today I can find almost anyone. A name typed into a search bar will surface a LinkedIn profile, a social media account, a local news mention, an obituary. The mystery has been eliminated so thoroughly that we've forgotten it ever existed. But for decades, the default condition of human relationships was impermanence followed by permanent silence. You met people, you knew them, they vanished, and the world closed over the gap they left behind.

I've written before about how pre-internet life was never designed to be archived — how it existed as lived experience rather than data, and how the absence of records is not a failure of retrieval but a genuine absence. The disappearance of people operates on the same principle. Those connections were not documented, tracked, or preserved. They existed in person, in proximity, in shared physical space. When the proximity ended, the connection ended. No trace remained in any system. The only archive was your own memory, and memory — as I've explored in thinking about how memories detach from their temporal anchors — is not a reliable archive of anything.

I sometimes wonder whether those people think of me. Whether the woman from Sheffield ever recalls the office we shared, the specific quality of light through those windows, the coffee machine that never worked properly. Probably not. Or if she does, she remembers a vague shape — a young man whose name she cannot retrieve, whose face has blurred into a composite of several faces from that era. This is how it goes. We were real to each other for a period, and then we became ghosts in each other's pasts. Not dead, not absent — just permanently unreachable.

There was something honest about it, though I'm reluctant to romanticise. The impermanence forced a certain presence. You paid attention to people because you sensed, even unconsciously, that this might be all the time you'd get. Conversations carried more weight when you couldn't resume them later via text message. Departures had gravity. When someone left, you understood — really understood — that this was probably the end, and you conducted yourself accordingly. There were more proper goodbyes. More deliberate last conversations. More attention to the fact of someone's physical presence before it was withdrawn.

My father had a friend called Roy who he'd known since childhood. Roy moved to Australia in 1971 and they lost contact almost immediately. For over thirty years, my father mentioned Roy occasionally — wondering aloud what had become of him, whether he'd married, whether he was still alive. There was no way to find out. In 2004, after my father had been online for a few years, he searched for Roy's name and found him within minutes. They exchanged emails. It was friendly but brief. The gap was too wide. They had become different people. The reunion answered the question but couldn't restore the relationship. The mystery had been more sustaining than the resolution.

I suspect that is the real loss here. Not the people themselves — they are out there, or they aren't, living their lives independent of my curiosity. The loss is of a world where not-knowing was a permanent and accepted condition. Where you could carry someone with you for decades as an unanswered question, and the question itself was a form of connection. The internet resolved the questions but dissolved the carrying. Now everything is either findable or confirmed dead. The middle state — alive in memory, unknown in fact — has been almost entirely eliminated.

I don't want to go back to it. But I notice its absence.

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