Ersilia, the Invisible City

Ersilia is a city imagined by Cuban-Italian writer Italo Calvino in his book 'Invisible Cities'. Calvino's vivid description of the city is a perfect metaphore for our mission.

In Ersilia, to establish the relationships that sustain the city’s life, the inhabitants stretch strings from the corners of the houses, white or black or gray or black-and-white according to whether they mark a relationship of blood, of trade, or authority, agency. When the strings become so numerous that you can no longer pass among them, the inhabitants leave: the houses are dismantled; only the strings and their supports remain. From a mountainside, camping with their household goods, Ersilia’s refugees look at the labyrinth of taut strings and poles that rise in the plain. That is the city of Ersilia still, and they are nothing.

They rebuild Ersilia elsewhere. They weave a similar pattern of strings which they would like to be more complex and at the same time more regular than the other. Then they abandon it and take themselves and their houses still farther away.

Thus, when travelling in the territory of Ersilia, you come upon the ruins of the abandoned cities, without the walls which do not last, without the bones of the dead which the wind rolls away: spiderwebs of intricate relationships seeking a form.

Invisible Cities, Trading Cities, Italo Calvino

The city of Ersilia, imagined by DALL·E

DALL·E is an Artificial Intelligence (AI) system developed by OpenAI. DALL·E reads text and creates images based on it. We asked DALL·E to imagine the Ersilia.

Other Invisible Cities

The city of Zaira

In vain, ... shall I attempt to describe Zaira, city of memories. I could tell you how many steps make up the streets rising like stairways, and the degree of the arcades’ curves, and what kind of zinc scales cover the roofs; but I already know this would be the same as telling you nothing. The city does not consist of this, but of relationships between the measurements of its space and the events of its past: ...

As this wave from memories flows in, the city soaks it up like a sponge and expands. A description of Zaira as it is today should contain all Zaira’s past. The city, however, does not tell its past, but contains it like the lines of a hand, written in the corners of the streets, the gratings of the windows, the banisters of the steps, the antennae of the lightning rods, the poles of the flags, every segment marked in turn with scratches, indentations, scrolls.

Invisible Cities, Cities & Memory, Italo Calvino

The city of Isaura

Isaura, city of the thousand wells, is said to rise over a deep, subterranean lake. On all sides, wherever the inhabitants dig long vertical holes in the ground, they succeed in drawing up water, as far as the city extends, and no farther. Its green border repeats the dark outline of the buried lake; an invisible landscape conditions the visible one; everything that moves in the sunlight is driven by the lapping wave enclosed beneath the rock's calcareous sky.

Consequently two forms of religion exist in Isaura.

The city's gods, according to some people, live in the depths, in the black lake that feeds the underground streams. According to others, the gods live in the buckets that rise, suspended from a cable, as they appear over the edge of the wells, in the revolving pulleys, in the windlasses of the norias, in the pump handles. in the blades of the windmills that draw the water up from the drillings, in the trestles that support the twisting probes, in the reservoirs perched on stilts over the roofs. in the slender arches of the aqueducts, in all the columns of water, 20 the vertical pipes, the plungers, the drains, all the way up to the weathercocks that surmount the airy scaffoldings of Isaura, a city that moves entirely upward.

Invisible Cities, Thin Cities, Italo Calvino

The city of Olinda

In Olinda, if you go out with a magnifying glass and hunt carefully, you may find somewhere a point no bigger than the head of a pin which, if you look at it slightly enlarged, reveals within itself the roofs, the antennas, the skylights, the gardens, the pools, the streamers across the streets, the kiosks in the squeares, the horse-racing track. That point does not remain there: a year later you will find it the size of half a lemon, then as large as a mushroom, then a soup plate. And then it becomes a full-size city, enclosed within the earlier city: a new city that forces its way ahead in the earlier city and presses its way toward the outside.

Olinda is certainly not the only city that grows in concentric circles, like tree trunks which each year add one more ring. But in other cities there remains, in the center, the old narrow girlde of the walls from which the withered spires rise, the towers, the tiled roofs, the domes, while the new quarters sprawl around them like a loosened belt. Not Olinda: the old walls expand bearing the old quarters with them, enlarged but maintaining their proportions an a broader horizon at the edges of the city; they surround the slightly newer quarters, which also grew up on the margins and became thinner to make room for still more recent ones pressing from inside; and so, on and on, to the heart of the city, a totally new Olinda which, in its reduced dimensions retains the features and the flow of lymph of the first Olinda and of all the Olindas that have blossomed one from the other; and within this innermost circle there are always blossoming—though it is hard to discern them—the next Olinda and those that will grow after it.

Invisible Cities, Hidden Cities, Italo Calvino

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