Finding quiet corners in District 1

My internship came with a desk on a high floor, a badge that beeps, and a view of Ho Chi Minh City that I mostly see reflected in a monitor full of comparables. I love the work. I also learned, somewhere around week three, that I cannot think a hard thought at that desk.

So I started leaving it. Twenty minutes at a time, notebook in hand, no laptop — a rule I have broken exactly twice. What follows is the list I've built this summer: the places within walking distance of the office where a benchmarking problem I'd been circling for two days would suddenly hold still long enough to be looked at.

The stairwell nobody uses

Every building has one. Ours is the fire stairs between the fourteenth and fifteenth floors — cool concrete, a hum from somewhere in the ceiling, and, critically, no chairs. I do my best thinking standing up and slightly uncomfortable. Sit me down with a coffee and I will happily reorganise my notes for forty minutes and call it progress.

The stairwell is for one specific kind of problem: the one where I already know the answer and am avoiding it. Ten minutes there and the avoidance usually runs out of places to hide.

The café with the bad wifi

On a lane off Pasteur, ten thousand đồng cheaper than anywhere with a queue, and blessed with a signal so unreliable it functions as a productivity tool. You cannot look anything up. You can only work with what you already carried in, which turns out to be a good test of whether you understood it.

A place is good for thinking in inverse proportion to how easy it is to look something up there.

That's unfair to the internet and it has held all summer anyway. Half of what I thought were research problems were comprehension problems wearing a disguise.

The courtyard behind the pagoda

Ten minutes' walk and the traffic noise drops by what feels like half. There are plastic stools, an old man who is always there before me, and a tree doing most of the architectural work. This is where the shape problems get solved — the ones where the numbers are fine but the story they're arranged into is wrong.

I came back from that courtyard once with the sentence “we're comparing them to the wrong kind of company,” which cost me two days of rework and saved a model that was quietly indefensible.

The 5:40 walk

Less a place than a route: out of the lobby, left, down toward Bến Thành, no destination. Saigon at that hour is a wall of motorbike engines and grilled-something smoke and it is somehow the easiest place in the city to hear yourself. I've stopped fighting it. If the day produced one unresolved question, this is where it gets its last chance.

The rules that make the list work

The places matter less than the constraints I put around them. Four of them, learned by getting each one wrong first:

• Notebook, not laptop. If the question doesn't fit on one page, it isn't the real question yet.

• Twenty minutes, timed. Long enough to get somewhere. Short enough that nobody wonders where you went.

• One question per walk. Two questions is a to-do list, and a to-do list is not thinking.

• Come back with a sentence, not an answer. The sentence is the deliverable. The answer usually follows within a day.

Three weeks left here, and then a library carrel in West Lafayette, which has considerably less atmosphere and roughly the same effect. I've made peace with the fact that the list doesn't travel — the courtyard is the courtyard, and there is no version of it in Indiana.

The habit travels, though. Leave the desk with one question. Come back with one sentence. Everything I got right this summer arrived that way, about nine minutes into a walk I didn't feel like taking.