Last Saturday around four in the afternoon, I walked outside to drag the trash can back from the curb and sat down on it instead. Not on the can. On the curb itself, the rough concrete lip where the asphalt meets the sidewalk in front of our house. I was wearing the gym shorts I’d been meaning to change out of since morning. My phone was inside on the kitchen counter. I had no plan to come back in. I sat there for somewhere between forty minutes and an hour and a half, watching a neighbor’s kid try to teach himself to ollie on a skateboard, and I felt something I have not felt since I was eleven years old.

Most people would call what I did relaxing. That word is wrong. Relaxing is a programmed activity with a known endpoint — a bath, a glass of wine, a show queued up. What I did had no shape. It was idle in the old sense, the sense the word had before productivity culture made idleness shameful. I sat on a curb and let time pass over me without trying to convert it into anything.

The conventional wisdom about adult happiness says we have to engineer it. Schedule the hike, book the dinner, plan the trip, optimize the weekend. Rest itself has been colonized by intention — restorative yoga, mindful walking, a meditation app that tells you when to breathe. What I noticed on the curb is that the happiest hours of my entire childhood, the ones I can still summon in physical detail thirty years later, were hours when nothing whatsoever was being engineered. I was just outside. The sun was doing what it does in late June. And no adult, including the one I would become, was asking me to account for the time.

The Specific Shape of Doing Nothing

I want to be precise about what I mean, because adults have a habit of romanticizing childhood in ways that flatten what actually happened. The hours I’m thinking of were not adventures. They were not memorable in any conventional sense. I sat on the curb in front of my friend Marco’s house — this would be 1993, 1994 — and we ate freeze pops and watched cars go by and occasionally said something and mostly didn’t. Sometimes we made up rules for a game we never played. Sometimes we picked at the tar bubbles in the asphalt. Sometimes we lay back on the warm concrete and looked at the bottoms of leaves.

That is the entire memory. There is no plot. And yet when I close my eyes I can give you the temperature of the curb against the back of my thighs, the specific blue-green of the freeze pop wrapper, the sound of a basketball being dribbled four houses down. The memory is encoded with a fidelity my last vacation cannot match.

Researchers who study why nostalgia hits this hard have a theory about what’s happening here. The Atlantic ran a piece on nostalgia as a defense against unhappiness that gets at it: certain low-stakes, sensory-rich, unstructured experiences become permanent emotional anchors precisely because nothing was demanded of us during them. The brain, freed from performance, encoded the moment whole. Psychology Today’s work on the nostalgic brain goes further — these memories function as a kind of psychological shelter we return to when adult life feels too tightly wound.

The House Where Time Had a Cost

I grew up in a household where time was always being measured against something else. Not punished — my parents weren’t cruel — but accounted for. What did you do today. Did you finish your homework. Why are you just lying there. The questions were affectionate. They were also a meter running quietly in the background of every afternoon. By twelve I had internalized the meter. By twenty I was paying it without noticing. By thirty I had a career that required me to bill my hours to a federal calendar, and the meter and I were the same person.

The work I do now — space policy, budget appropriations, the long arithmetic of what NASA can and cannot afford — is built on the assumption that time is the most fungible resource we have. Convert it into output. Convert it into deliverables. A weekend that produces nothing is a weekend that has somehow failed.

I’m 41 years old, and I cannot remember the last time I sat down outside without a phone, a book, a podcast, a conversation, a glass of something, a task, or an end-time. The closest I come is the five minutes between getting out of the car and walking inside, and even then I’m usually scrolling something while I do it. Thirty years. The math is brutal when you do it. Thirty summers in which I did not give myself the thing that, by my own emotional accounting, made me happiest as a child.

What the Adult Mind Does to a Curb

The first ten minutes on the curb were uncomfortable in a way I want to describe carefully. My body did not know what to do with unstructured time. My hand kept reaching for a phone that wasn’t there. My mind generated tasks — I should water the plants, I should email so-and-so, I should at least be reading something — and presented them as moral obligations. The discomfort was not boredom. It was something closer to withdrawal.

I’ve written before about how emotional suppression in childhood produces adults who can read everyone but themselves. What I had not understood until that curb was that the same machinery applies to time. I have spent decades reading what time is supposed to be doing — productive, restorative, social, intentional — without ever asking what time actually feels like when it isn’t doing anything at all.

Around minute fifteen, something shifted. The task-generator quieted. I noticed that the maple tree two houses down has a branch that is going to fall on someone’s car in the next bad storm. I noticed that my neighbor’s kid lands an ollie maybe one in nine tries and is not getting discouraged. I noticed the specific rust pattern on a stop sign I have walked past four hundred times. None of these noticings were useful. That was the point.

The Research on What We Took Away

Children today spend far less unstructured time outdoors than their parents did at the same age. The absence of programming is itself the active ingredient — the child has to do something with the time, and what they do is build the inner life that will, decades later, be the thing they reach for in a crisis. As research on unstructured play and children’s development argues, this developmental shift has consequences: difficulty tolerating boredom, dependence on external scheduling, an atrophied capacity to generate meaning from simple, unstructured moments.

A Business Insider essay from last year — a parent describing the deliberate effort to give her kids a 90s-style childhood — caught my attention because of how much intention it requires now to produce what used to be the default. She has to schedule unstructuredness. She has to defend it against other parents, against her own anxiety, against the gravitational pull of organized everything. The thing that was free has become a thing you fight for.

Why Gen Z Is Already Mourning a Childhood They Just Had

What surprised me, reading around on this, was how aware younger people already are of what was taken. A Purdue student writing about Gen Z and Y2K nostalgia made the case that the generation now in college is already grieving a childhood that ended approximately six years ago. They are nostalgic in their twenties because the texture of unstructured time disappeared from their lives in real time, and they watched it go.

I have written before about the children of the 1980s and the early radar most of us still run on. The radar was built outside, on curbs and in parking lots and in the long flat hours between when school let out and when streetlights came on. Whatever else those hours did to us, they gave us an unmonitored interior. The thing I cannot tell whether kids now are getting.

What I Am Not Going to Do With This

The instinct, having had this realization, is to optimize it. Schedule curb time. Block out Saturdays for sitting outside. Build a practice. I can feel the policy-analyst part of my brain wanting to write the implementation memo for my own life.

That is the trap. Curb time cannot be scheduled because the moment it becomes a calendar entry it becomes another thing being asked of me. The whole point — the reason the eleven-year-old version of me was happy and the forty-one-year-old version forgot how — is that no one was asking. Including him.

What I am going to do, or trying to, is smaller than a practice. When I take the trash can out, I might sit down for a minute. When I get home from somewhere, I might not go inside immediately. When the afternoon gets long and I notice the old pull toward generating a task, I might let it pass. Most of the time I will probably fail. I have thirty years of momentum in the other direction and a job that pays me to convert hours into deliverables.

But I sat on a curb last Saturday for somewhere between forty minutes and an hour and a half, and the kid four houses down landed his ollie eventually, and I went back inside knowing something I had not known that morning: the part of me that was happiest was never the part that was achieving anything. He was just outside. He was eleven. He is, it turns out, still in there, waiting on a warm concrete lip for someone to remember him.