Unraveling history's alternate timelines

My visit to Xujiahui in 1969 as documented on May 6, 2026

Water Beading on the Account Wall

The loudspeakers on Huaihai Road start before dawn, as if the city is afraid that quiet will grow ideas. “Long live Chairman Mao,” then a weather report delivered like an accusation: chance of drizzle, chance of ideological slackness. I wake to the sound of my upstairs neighbor sliding a chamber pot lid back into place, then the squeak of his window latch, then the same phrase shouted again from a pole speaker that tilts slightly, like it’s listening for a reply.

I came here for a single reason, and I keep repeating it to myself so I don’t get sentimental: I’m looking for what can be said but isn’t versus what can’t be said at all. In my experience, that boundary is usually drawn in paper—pamphlets, posters, forms. Here it’s drawn in masonry.

The queues form anyway. Cotton-padded jackets with elbows gone shiny. Ration booklets held close, as if warmth can be shared by paper. Tin lunch pails clanging against bicycle frames. The air is wet enough that the coal smoke doesn’t rise; it smears itself along the street and clings to my throat. I keep my hands in my pockets and practice the local posture: neutral shoulders, neutral eyes. People in Shanghai have become experts at not looking like they’re looking.

I nearly commit my first small crime before breakfast. Outside a steamed bun stall, I misread a hand-painted conversion chart and try to pay for two buns by estimating weight in ounces—an old reflex, and a stupid one. The vendor, a woman with chapped knuckles and the kind of calm that comes from surviving daily arithmetic, stares at me as if I’ve offered to pay in seashells. She taps the wall beside her stall with the handle of her ladle.

On the wall, a neat grid of characters and numbers has been painted directly onto the brick, lacquer-dark and glossy in the damp. It lists prices, ration requirements, and a line that I first take as decoration until she points again: a unit conversion table, brush-written, officially stamped, and updated in red.

“Liang,” she says, slow, as if speaking to someone with a head injury. “Not your foreign small-weight.”

I nod too much, which is always suspicious, and fish out the right coupons. She softens just enough to warn me: “Don’t joke with measures. People got reported last year—said they ‘confused the masses.’” Then she adds, with practical pity, “Read the wall next time.”

Read the wall. That is the local instruction for almost everything.

In my base line, Shanghai in ’69 is paper layered on paper: big-character posters pasted and torn, slogans bleaching under rain, and sudden empty spaces where someone has scraped a name away. Here, the walls are accounts. The lane entrances, factory gates, warehouse doors, even the side of a public latrine carry thick calligraphy and cartoon panels that sit on the surface like enamel. The strokes don’t feather in humidity. They don’t curl because there’s nothing to curl. Water beads on them the way it beads on an oilcloth table cover.

At Xujiahui, near a textile work unit, I find a full “account wall,” ten meters long, aligned carefully so the grid doesn’t slant even though the brick underneath does. Someone has gone to the trouble of correcting the wall’s natural tilt by thickening strokes on one side. It is a small aesthetic mercy, and a revealing one: the wall has to look straight, because the wall is the record.

On it: production quotas, attendance marks, commendations, denunciations, ration credits, grain allocations, and a small comic of a rat labeled “self-interest” being crushed under a red boot. The characters are bold enough to be read from a moving truck. I watch a man in his thirties—hands stained with dye, nails rimmed dark—study the wall the way a banker studies a ledger. He traces a column with his finger without touching, as if the numbers might smear onto him.

A young cadre notices me noticing and steps closer, planting his feet square as if he’s bracing against a gust. “The masses supervise the masses,” he says, reciting. His hair is cut short enough to look like it hurts. “Nothing hidden. No private accounts.”

“Nothing hidden,” I repeat, and instantly regret it. In this decade, “hidden” is a word that carries a hook.

He narrows his eyes. For a few seconds the street noise seems to tilt. A bicycle bell rings too close, and my shoulders tense, which is the wrong kind of movement. Then he relaxes, perhaps deciding I’m merely ignorant rather than dangerous.

“You can read,” he says. “Reading is allowed.” It is meant as a joke. It doesn’t land.

The official story is transparency, but the practical story sits in the chemistry that nobody here talks about out loud because chemistry implies recipes, and recipes imply ownership. Paper is unreliable, and in this Shanghai paper is beneath the wall. If you want to know what a person is owed, what they owe, what they have confessed, what they have promised, and how well they have performed that promise, you check the nearest masonry.

I can see how the city backed into this without admitting it chose it. A copying error at the Jiangnan Arsenal a century ago—one tired proofreader yanked away by a crackdown, one word in a manual swapped for a similar-sounding workshop fixative—would have been invisible at the time. Then the wrong substance became the right one by persistence. By the 1890s it would have moved through dye houses and printing shops because it behaves better in damp air. Treaty-port studios in the interwar years would have discovered it bonds lacquered inks to metal and brick, turning walls into media. By now, no one needs to remember the beginning; they only need to trust the result.

The trust is enforced, but it is also practical. A wall that doesn’t wash away is convenient. It is also terrifying.

In a lane behind the work unit, I meet one of the “correction troupes.” They are a small group, four people, walking like a unit and carrying brushes, pigment tins, a folding ruler, and a booklet of approved character forms. The leader is a woman with cropped hair and the expression of someone who has watched too many human beings become arithmetic. Their tools are clean in a way that feels almost rude in this neighborhood.

“We were summoned,” she tells me, not unfriendly, just careful. “The wall has become unclear.”

Unclear is literal. When ration credits are a line on a public mural, legibility is survival. A sloppy stroke can turn “8” into “0” for a clerk who is already tired and suspicious. A widened radical can make a name resemble someone else’s. Durability doesn’t prevent human error; it fossilizes it.

They set up a small work area with a string line to keep the grid straight, and I watch, trying to look like I’m simply a curious passerby. They don’t paint over mistakes casually. They balance them. First a thin underline in black, then a correcting character in red, then an annotation in smaller script naming the approving cadre and date.

It has the same feel as old stone steles: the state speaking in a hand that expects to outlast the speaker.

A factory worker approaches, hat in hand though it’s not raining much, and speaks quietly to the troupe leader. I can’t catch every word, but I catch the shape of it: his wife’s ration line is “too thin,” he says, meaning it could be misread. He offers something small and folded—cigarettes, I suspect, or a cloth coupon.

The troupe leader doesn’t take it. She doesn’t even look at it. She looks at the wall.

“Submit through the office,” she says. Not harshly. Simply stating which channels are considered safe.

The worker’s shoulders sag in a way I’ve seen before in other places: the posture of someone reminded that the rules are not written for his convenience. He nods and backs away.

This is where the imbalance shows itself, not in grand speeches but in who can afford to wait for a correction and who can’t. The wall is for everyone to see, but not everyone has equal power to change what it says. Benefits are shared—no one is entirely excluded from the ration math—but the cost of a wrong stroke lands hardest on the people who have no buffer. The wall doesn’t starve cadres; it makes workers stand in longer lines.

As the troupe works, a background process continues without caring about my presence: a truck idles at the far end of the lane, belching exhaust and waiting for a gate to open. Men unload bolts of cloth with practiced speed, and a teenager with a clipboard checks each bolt against the wall’s tally before letting it pass. The wall is the authority, not the clipboard. The clipboard is just a traveling apology.

Around midday I wander toward the Bund, following the flow of bicycles and the smell of wet rope from the river. The sidewalks feel slightly off-balance, as if the stones have settled unevenly from years of foot traffic and occasional urgency. I step wrong once and my shoulder brushes a wall panel. A woman behind me clicks her tongue sharply.

“Don’t touch the account,” she snaps, louder than necessary. Two people glance over immediately, eyes flat. For a moment my curiosity becomes a liability.

“I’m sorry,” I say, and then, because I can’t help myself, I add, “It’s so… smooth.”

She looks me up and down. My coat is plain enough, but my accent is wrong in a way that makes people’s minds search for categories. “Smooth is the point,” she says. “Smooth means it stays. You want it to stay.”

It is both a warning and a lesson in local values. People here have developed a taste for clarity the way other places develop a taste for beauty. Thick strokes. Even margins. Straight grids. The aesthetic is administrative.

Near a construction site, I see something that would have been a joke in my line and is not a joke here: a “ward-stitch” poster. It is pasted on temporary plywood, the only truly paper thing I’ve seen all day, but the ink is unusual—fine threadlike lines weaving across the sheet in looping patterns that resemble embroidery and circuit diagrams. Someone has written a caption in careful script: “Stitch the cracks, reinforce order.”

A homemade label dangles from a cable near the poster, tied on with string: “Stitch Line—Do Not Cut.” The label is written in two hands, one neat and one hurried, as if the first wasn’t trusted to last without the second’s emphasis. I make the mistake of assuming it refers to the electricity.

“So this is for power?” I ask a warehouse cadre standing nearby.

He gives me a look that contains a whole committee meeting. “Power is everywhere,” he says. “This is for loss.”

“For… theft?” I try.

“For misplacement,” he corrects, as if theft is too dramatic and therefore too honest. “Inventory disappears when order is weak. The stitch helps. The wall must hold the numbers.”

Two workers with him nod like men discussing a new kind of bolt. One, older, face like dried persimmon, adds, “No. 3 workshop did stitch last month. Their missing nails came back.”

I do not believe in frostbound folktales of royal seamstresses mending magic gates. But I have learned to respect the operational power of metaphors that arrive with a brush and a stamp. When a society already treats writing as infrastructure, it is a short step to treating certain kinds of writing as load-bearing. If the wall can hold your ration line, why can’t a stitched line hold your supply chain?

There are taboos now, grown up around ink the way taboos grow up around food. To deface a quota mural is sabotage. To smear an account wall is theft. To tear a ward-stitch poster is—depending on who you ask—counterrevolutionary, unlucky, or simply stupid. Children are taught not to touch certain loops because “the stitch will unravel.” I watch a boy reach toward the poster, then yank his hand back as if the ink were hot.

Later, under an eave while rain picks up, I watch water bead on an account wall instead of soaking in. The characters stay black. The red stays red. The droplets gather and roll down in slow lines, not erasing anything, just briefly distorting the strokes like a magnifying lens.

A woman beside me adjusts her ration booklet and stares up at the column where her household score is written. She doesn’t cry or curse. She simply checks the numbers again, lips moving without sound, as if repetition can change them. An old man at the edge of the crowd points with his umbrella tip—careful not to touch—and corrects her reading of a character radical the way someone might correct a child’s pronunciation.

As the rain continues, a loudspeaker somewhere starts up again, steady as a metronome, announcing a meeting time and a slogan and then, oddly, a reminder: “Do not alter wall accounts without authorization.” It sounds like the kind of rule you only need after someone tried.

By late afternoon the street has a clean-wet look, but nothing feels cleaner. A bicycle repairman squats by the curb, patching a tire while keeping one eye on the lane entrance wall, where someone has added a fresh red annotation. Two girls in identical braids skip around puddles without splashing the murals. The truck I saw earlier is still somewhere in the district, still unloading, still being counted. I stand a little too close to the wall again and correct myself before anyone has to.

On my way back I stop at a small supply shop and buy a length of twine because I’ve learned that packages here are tied, not merely carried. The shopkeeper measures it against a board marked with units I now recognize, then glances up at his own price grid painted on the brick behind him. The twine feels rough and damp in my hand, and the knot I tie is clumsy, but it holds. Outside, the loudspeakers keep talking, the rain keeps falling, and the ink keeps refusing to forget.