Coincidentally, the two shows I’ve watched recently can both be framed under the logic of “compute power.” Mercy is a confrontation between humans and data: under a 90-minute countdown, how does a suspect prove his innocence under an AI trial? 레이디 두아 (The Art of Sarah) explores the relationship between humans and identity: the police painstakingly verify, construct, and dismantle a suspect’s multiple identities, and ultimately must prove her guilt within 48 hours.

First, Mercy runs only 1.5 hours, yet its pacing is so fast I checked multiple times to make sure I hadn’t accidentally turned on double speed. Within such restrained runtime, it tells a fully developed story. The plot flows smoothly, the rhythm expands and contracts, twists overturn one another, and hesitation follows reversal. Watching it feels like the mind rising and falling like tides, leaving behind the surging echoes of waves crashing against rocks.

The film constructs the idea of a “Court of Forgiveness” and an “AI Judge.” In a system highly dependent on artificial intelligence, the AI judge can retrieve all surveillance footage, access private emails, texts, and social accounts, decode any human password, and even remotely control electronic devices. It generates a suspicion index based on video, audio, and textual materials related to the suspect. The suspect must prove their innocence within 90 minutes and reduce the suspicion index to 92%—the threshold of reasonable doubt. Otherwise, when the countdown ends, they will be executed on the spot by ultrasonic devices embedded in the chair.

The suspect is Raven, a police officer who had previously arrested eight suspects and put them on trial. Now he stands accused of murdering his wife. The AI’s evidence includes: footage of him forcing his way into their home after an argument that day, videos of him drinking heavily at a bar, his extremely high blood alcohol level at arrest, fingerprints and fibers on the weapon that match his, and messages from his wife confiding to a friend about his frequent emotional outbursts. These seemingly conclusive and indisputable data points set his initial suspicion index at 97.5%.

On the massive LED screen before him, relationships that even he himself may have forgotten are clearly laid out. Surveillance footage near the crime scene is instantly retrieved and precisely analyzed. It even uncovers his daughter’s private social media account—something he had never noticed. Human memory, logic, and even the things we wish to keep hidden have nowhere to escape in front of this screen.

It is so powerful and authoritative—so can it be wrong?

The protagonist watches his suspicion index on the left and the flashing red countdown on the right. Where can he find a breakthrough? He asks to review a video uploaded to his daughter’s private account the night before the crime, which accidentally captured his wife using another phone 📱. This second phone, equipped with a black-market SIM card and not connected to the city’s cloud system, becomes the key 🔑 that unlocks an entire chain of information.

The AI judge’s logic is linear: if data shows you were present at the time and place of the crime, then you must be the killer. But data can only record what happened—it cannot explain why it happened.

For example, a vast and efficient database can identify who was involved, when, and how much of a chemical substance was smuggled by the company where the wife worked. But it cannot determine why. Was it for money? For fame? For love? That remains beyond its reach. And what makes humans human lies precisely in those motives, emotions, and contingencies that data cannot capture.

When all evidence is digitized, what can a person use to prove “themselves”? Perhaps it is the curiosity to ask why and the courage to ask why not. What cannot be quantified are the depths and shallows of the soul—vanity and superficiality, fractures and wounds. Hamlet, who could utter “to be or not to be,” must have stood at the brink of destruction in his life.

I don’t think real life requires us to confront data, intelligence, or machines the way films portray. We need refined algorithms, but we should also accept both our beauty and our ordinariness—that is where our flesh and blood reside.

If Mercy represents computational power in an objective sense, then 레이디 두아 (The Art of Sarah) feels more like how humans decode their own algorithms.

First, a crime thriller set in an urban context feels refreshingly new. It also gave me some inspiration. Crime suspense doesn’t have to be set in dim, humid borderlands with old unresolved murders; glamorous elites don’t have to be confined to office buildings, meetings, and coffee—they can be central figures in crime; brand symbolism isn’t limited to conspicuous luxury consumption—it can also express, with dark humor, the “logic of luxury.”

For example, the female lead infiltrates high society by fabricating an identity, then uses that identity to endorse herself. She creates scarcity for her brand, builds trust, and ultimately convinces everyone to willingly pay for the “story.” A bag is expensive not merely because of its material, but because enough people believe it is worth that price. “Luxury has value because you believe in it.”

Back to the mystery: the story revolves around a murder case. All evidence points to Jin Sara, a socialite at the center of elite society. The police begin searching for a breakthrough in her airtight deception and uncover her first identity: a luxury store salesperson in a department store, burdened with massive debt after theft at her counter, pushed to desperation. She leaves a perfume-sprayed suicide note in her rented room, hugs her beloved bag, and jumps into a lake. Yet in the final moment before sinking, she undergoes a mental transformation—perhaps wanting to leave behind some ripple in her life, to build a bridge of some kind.

She then assumes a new identity, working in an entertainment venue, and enters a sham marriage with a gang leader who needs a kidney transplant in exchange for legal status. From the wealthy, she learns that “wealth is not a state, but a mindset,” and gradually steps into high society. When the tycoon eventually realizes he has been ensnared in an elaborate scam, a tree in his courtyard—once introduced to Sara as majestic and canopy-like—is removed overnight, leaving only a short, crude stump. The visual storytelling here is striking: instead of showing the tycoon’s rage or despair, the empty courtyard and severed stump silently mock the situation.

With accumulated capital and cultivated posture, the female lead dons her third “skin”—Jin Sara. She disassembles bags produced in small workshops, ships them overseas for reassembly, and reintroduces them into Korea as “European imports,” successfully targeting the “top 0.01%” of the wealthy.

As the truth is about to surface and Jin Sara faces charges, a fourth identity emerges—the impersonator. One of her lines is brilliant: “The reason I can become you is not because I’m fake, but because you are fake—only then can I impersonate you.”

Impersonation succeeds not because the impersonator is brilliant, but because the original has cracks. Jin Sara herself may also be “performing” Sara—the elegant, flawless socialite admired by all. If she can act the part, why can’t I?

In the end, identity becomes something that can be worn. Identity becomes one—or multiple—algorithms, and a person becomes their own puzzle.

The ending is also intriguing: the protagonist chooses to confess under her fourth identity and go to prison, preserving the brand she built. The detective uncovers the truth, only to realize that truth itself does not bring justice. None of the deceived tycoons are willing to admit they were victims, because doing so would mean admitting their own vanity and foolishness. Are they not also trapped within their own puzzles and algorithms? Some of these algorithms are willingly embraced; others are passively imposed.

Data is an algorithm. Identity is an algorithm. Planning is an algorithm. Even karmic causality can be seen as an algorithm. If we are all shaped, entangled, or even willingly woven into these seemingly safe and orderly algorithms, then what lies beyond compute power?

I don’t know. So sometimes I write in a diary. When I open it, each page has a date in the upper right corner. Flipping backward, black handwriting fills every past day—fragmented, joyful, or calm—none of it can be changed. Flipping forward, every page is blank, because tomorrow is always unknowable.

Why must compute power reach toward the universe, technology, or grand mysteries? Perhaps every tomorrow lies beyond it.

Last year on March 24, the magnolias bloomed in the courtyard; I don’t know when they will bloom this year—that is beyond compute power.

Sitting in a café in the afternoon, hearing a beautiful song whose name I don’t know—that is beyond compute power.

On the tennis court, the force, direction, and placement of every incoming shot from my opponent are beyond compute power.

We always want to use rules and logic to calculate equations, measure distances, analyze destiny, and categorize personality. But if everything could be predicted, what would be left to anticipate in this journey of life?

Beyond compute power may be the interweaving of other dimensions. The beauty of life lies precisely in what cannot be calculated—the accidents of fate, the subtleties of encounters, the countless differences born from a single thought.

Perhaps spiritual practice is learning, in those spaces beyond compute power, to live with uncertainty—and within it, to recognize who we are and to live out our own path.