Past Lives presents the assumption that perfect information retrieval could resolve existential loss, then systematically dismantles it.

Hae-sung and Nora spend the film's first movement trading data—photographs, memories, explanations of their separate lives—as if documentation could collapse the twelve-year gap, but Celine Song makes a crucial choice: she shows us that the more information they exchange, the more irreversible their divergence becomes.

Each detail clarifies not what they've kept but what they've built without each other. The film doesn't sentimentalize this; it makes it architectural instead.

When Nora walks Seoul's streets with Hae-sung, she's not retracing a digital timeline—she's moving through physical space that has no access key, no search function. The hotel room scene, where they nearly act on recovered connection, cuts to black not as romantic mystery but as the moment maximum transparency collides with maximum helplessness. They know everything about each other now.

The actual prescience here: Song intuited that late-capitalism's real obsession (imagine if we just had better data, better algorithms, better records) was always a misdiagnosis of the problem—the problem was never missing information, it was the arrow of time. By 2024, we built the search tool Past Lives was warning us about, and discovered it solved nothing.