In the final triptych of Mountains May Depart, the narrative leaps to 2025, centering on the character Dollar, a young man living in a sun-drenched but emotionally cold Australia. The future world is defined by a sense of unrooted globalism, where the physical environment is pristine and technologically advanced, yet serves as a site of profound cultural and familial amnesia. Earth, specifically the connection between the booming industrial landscapes of China and the coastal suburbs of the West, is portrayed as a space fractured by economic migration.

The societal dynamics focus on the erosion of heritage through wealth. In this 2025, the proliferation of digital devices and translation software has paradoxically led to a total breakdown in communication; Dollar is unable to speak his father's language, necessitating the use of Google Translate and digital interfaces to navigate their strained relationship. This depicts a world where the technological elimination of distance has only deepened the emotional and linguistic chasm between generations of the Chinese diaspora.

Technologically, the film presents a vision of 2025 featuring transparent, glass-like handheld devices and wearable tech reminiscent of evolved smart-glasses. While these sleek aesthetics align with mid-2010s industrial design trends, the film's most accurate prediction lies in its sociological foresight: the rise of a hyper-mobile elite whose lives are facilitated by tech but stripped of historical context. The film's depiction of 2025 Australia as a topographical limbo reflects real-world shifts in global real estate and the isolation of international student populations, a theme widely noted in contemporary criticism.