Dave-157 is the smaller of two similarly named megacities on Butterpond-4 and the distant home of Ryan Foster. Located roughly two thousand kilometers from Joe Mulligan’s residence, it is not merely a backdrop for a visit: reaching it turns Joe and Maggie’s developing partnership into a shared excursion through the planet’s transport infrastructure, while the territory around it exposes the environmental cost of colonization and industrial expansion.

Definition and Setting

Dave-157 resembles Dave-156 in broad character but is considerably smaller. Its separation from Joe Mulligan’s home makes an ordinary social call logistically demanding. The journey begins with a taxi ride to a tube station and continues by inter-city train, making distance visible as a sequence of modern systems rather than as an abstract measurement. Maggie is willing to find the money for the trip, although she normally avoids inflating Joe’s finances; Ryan Foster’s location therefore represents an unusual expense justified by an unusually pressing purpose.

The city is also defined by comparison. Dave-157 is presented as a metropolitan counterpart to Dave-156, but the route between them reveals what lies beyond the urban centers: a landscape stripped of much of its life by mining and settlement. The surrounding wilderness is crossed by mobile mining rigs that carve canyon-like wounds into the planet’s crust while extracting metals and minerals. Dave-157 consequently belongs to a civilization whose technological sophistication is matched by an aggressive material transformation of its environment.

Access and the Tube Journey

The route to Dave-157 gives the location a distinctive technological atmosphere. The flying taxi is familiar to Maggie from her earlier arrest, but the train captures her attention. Its long, sleek chassis suggests a gigantic serpent, an image that connects the machine to Azgod’Kalar, the small pet snake traveling with them inside Joe’s clothing, though Maggie recognizes that the train is neither alive nor small enough to hold in a hand.

The tube-train travels through a vacuum-sealed tunnel on magnetic rails and maintains supersonic speed with apparent ease. Its lack of windows prevents ordinary passengers from watching the scenery, but Maggie can peer through solid matter. Her unusual perception turns the train’s sealed design from a limitation into an opportunity: she expects to observe the wilderness directly while the vehicle passes through it. The episode presents Dave-157’s access system as both highly efficient and strangely isolating, a precision-engineered corridor that moves people rapidly while separating them from the world outside.

Environmental Contrast

Maggie’s expectation of discovering varied life between the cities is disappointed. The land outside the tube is described as dull and nearly lifeless, with mining scars as its principal landmarks. Her observation gives a concrete explanation for the scarcity of animals near Joe Mulligan’s home: the relentless spread of industry and colonization has probably driven indigenous flora and fauna away or destroyed them. Dave-157 is therefore associated not only with urban density but with the ecological absence produced by the society that sustains it.

This impression gains force through contrast with a later three-hour tube journey taken by Joe Mulligan and Maggie. The latter half of that route passes through an untouched tropical jungle overflowing with life. Butterpond-4 never developed an indigenous ecosystem of its own; the plants and animals in the jungle were transplanted from Earth by British colonists during terraforming. Maggie nevertheless finds the imported life scientifically valuable because she has not studied humanity’s homeworld in depth. The contrast between Dave-157’s barren surroundings and the preserved jungle does not simply divide city from nature. It distinguishes two possible outcomes of colonization: extraction and disappearance on one side, managed abundance and the persistence of observation-worthy life on the other.

Narrative Function

Dave-157 serves as a destination that enlarges the scale of the story. Joe’s world is initially organized around his apartment, nearby friends, and virtual activities, but the trip to Ryan Foster’s home carries him and Maggie across a substantial portion of Butterpond-4. The journey also makes their relationship more concrete. After leaving Ryan Foster’s apartment, Joe realizes that he has technically been on a date, a recognition that gives the visit romantic significance even though its immediate purpose is practical.

The location’s importance is therefore relational as well as geographic. It brings Ryan Foster into the couple’s orbit, requires Maggie to spend resources on Joe’s behalf, and gives her a sustained encounter with the infrastructure and damaged landscapes of the human world. The return trip preserves the contrast between them: Joe sleeps through the two-hour train ride, while Maggie researches the game she is about to play. Dave-157 remains behind as a place reached through speed, industry, and social obligation, but the journey to it leaves Maggie with a sharper understanding of the planet’s ecology and of the expanding, increasingly ordinary intimacy between her and Joe.