Hain is an inhabited world in the network of societies known to the novel, significant both as the origin of the interstellar drive used for travel between worlds and as a society that has helped other planets. Its importance is measured across distances and generations: the journeys Hainish ships make are slow enough to separate people from events at home, while Shevek’s theory points toward communication that could overcome that delay. Hain therefore stands at once for the limits of existing connection and for the possibility of a wider one.

Place in the Interstellar Network

Hain is one of the worlds connected by interstellar travel, but travel is costly and slow. During Shevek’s voyage, Dr. Kimoe explains that there are very few travelers between stars under those conditions. The prospect that interstellar travel may change gives the remark a quiet forward pull, though Shevek does not take up the doctor’s attempt to flatter or engage him. Hain is not presented as an easily accessible destination; distance has practical and social consequences for every world in the network.

Hainish people are known for having invented the drive then in use, even though they are still learning temporal physics from the theories developed on Anarres. At Urras, Oegeo argues that Shevek’s unification of Sequency and Simultaneity could make faster-than-light travel possible. If Shevek provides the theory, Oegeo says, Urrasti designers could build ships that reached Terra or Hain in the instant of departure. The unfinished vessel in the hangar would become obsolete. This proposal does not establish that such a ship is built; instead, it reveals the political and technological stakes attached to Shevek’s work, which Oegeo sees as potentially transformative for travel among worlds.

Hain and the Ansible

The connection between Hain and Shevek’s physics becomes more intimate in his explanation of the ansible. Shevek describes it as an idea for a device that would allow communication between two points in space without a time interval. It would not literally transmit messages: simultaneity would function, to human perception, as transmission. His analogy is a kind of telephone, but the consequences Keng imagines are planetary in scale.

Keng asks whether she could use the device to speak with her son in Delhi and her granddaughter, who had been five when Keng left Terra. The near-light-speed journey from Terra to Urras had taken eleven years, leaving family life and current events separated from her by the travel time. With an ansible, she could learn what was happening at home now, make decisions and agreements, and exchange information with people on other worlds. Hain enters this imagined future as a possible partner in conversation: Shevek could speak with physicists there without ideas taking a generation to arrive. Keng sees the device as making a league or federation of worlds possible, because it would let separated societies talk together at last.

Hainish Aid and Terra

Keng’s account also makes Hain a concrete historical presence in the survival of Terra. She describes Terra as a ruined but still habitable world, damaged by human overpopulation, conflict, and the destruction of its environment. Its former population of nine billion had fallen to nearly half a billion. The old cities remained, but their bones and bricks were decaying, while fragments of plastic persisted. Keng presents Terra’s survival as the outcome of extreme centralization: strict control of land, materials, and fuel, along with rationing, birth control, euthanasia, and universal conscription into labor.

When the Hainish arrived, they brought help and built ships that allowed Terrans to leave their ruined world. Keng describes them as generous, moved by a past that Terrans do not fully understand, and says that Terra’s people were again dealing as equals with other human societies because of Hainish assistance. That aid carries an ambivalence: the Hainish treat Terrans gently, as a strong person might treat someone sick, while Terra can look at Urras from outside with admiration and some envy. Hain is thus associated not with a simple rescue or a claim of superiority, but with the material conditions that made renewed interworld participation possible.

Foreigners and the Limits of Welcome

Hain’s presence also raises a question of entry into Anarres. When Shevek asks whether the Hainish officer would want to explore the planet, the officer answers that exploration is part of a mission ship’s duty when possible. He and the commander have discussed the possibility with their ambassadors, but no formal request was made because Anarres forbids foreigners to land. Shevek distinguishes the officer from an Urrasti visitor: the settlement terms prohibit Urrasti from landing beyond the Port boundary, he observes, but the officer is not Urrasti. The officer points out that when Anarres was settled, no other races were known, so the terms implicitly include all foreigners.

The exchange leaves the rule’s interpretation unsettled rather than recording a landing. It shows how a boundary made for a particular political history can govern encounters with peoples that its original wording could not have anticipated. Hain, a world linked to Anarres through science and to Terra through aid, becomes a test of whether Anarres’s isolation applies as an absolute prohibition or as a rule whose scope must be argued anew.