Diagnosis — A Reader’s Guide

The Laboratory as a Stage for Tension

The story’s setting—a laboratory where the two protagonists work on a machine that registers brain waves—is not merely a backdrop but an active participant in the conflict. Don’s initial complaint that Mary came in “dog-tired” after a night with Brannan immediately frames the experiment as both a scientific endeavor and a personal battleground. The lab is described as a place of “very complex experiment with the human brain,” yet the conversation quickly veers into accusations about Mary’s social life. This blurring of professional and private spheres is reinforced by Mary’s reminder that Don once called it “a man’s job,” a remark she uses to needle him. The laboratory thus becomes a space where scientific objectivity is constantly undermined by personal emotions, a tension that the experiment itself will eventually expose.

Projected Desires and Unreliable Images

When the machine projects Don’s subconscious onto a screen, the resulting images are a mixture of adventure fantasy and romantic wish-fulfillment. The sequence includes a “weird valley,” a monster, a rescue, and a kiss—all elements that Mary immediately interprets as Don’s “comic-book daydreams” and jealousy of Brannan. Yet the narrative complicates this reading: Don insists that later scenes, including Mary’s death and his own fall, are not his thoughts. The projection becomes unreliable, raising questions about whose mind is being displayed. The story uses this ambiguity to suggest that the machine may be capturing more than one consciousness, or that the boundary between subject and observer is permeable. The images are vivid but their source is contested, making the diagnostic tool itself a source of mystery.

Dialogue as a Mask for Subtext

The excerpts are dominated by rapid-fire dialogue that reveals character through what is not said. Mary’s evasions about her arrival time (“Oh … enough. You’d be surprised…”) and Don’s pointed questions create a rhythm of concealment and accusation. Their exchanges are laced with sarcasm and double meanings: Mary’s offer to be the test subject (“if anything goes wrong, all your work won’t be lost”) carries a hint of self-sacrifice, while Don’s retort about a “nuthouse” underscores the stakes. Even the banter about Brannan—described as “quiet, respectable, deep—and only one thing on his mind”—serves to deflect deeper feelings. The dialogue functions as a verbal sparring match, where each character tries to maintain control while revealing more than they intend. This pattern culminates in the projection scene, where visual images bypass verbal filters entirely.

The Eternal Triangle as Scientific Variable

The story’s subtitle promises “two men and one girl—the eternal triangle—and mix well with an oscilloscope gone haywire.” The excerpts bear this out: Brannan is a constant offstage presence, invoked to provoke jealousy and define the romantic stakes. Don’s projection casts Brannan as a cloaked villain with a dagger, a transparent fantasy of rivalry. Yet Mary’s reaction—“But how evil he looks!”—suggests she sees the image as a distortion. The triangle is not merely romantic but epistemological: each character’s perception of Brannan differs, and the machine cannot resolve which version is true. The scientific experiment becomes a vehicle for exploring how desire and fear shape perception, with the third party serving as a catalyst for the central couple’s unspoken tensions.

The story uses its science-fictional premise to externalize internal conflict, but leaves the mechanism ambiguous. Readers should attend to the gaps in dialogue and the contested nature of the projected images—what one character claims as fantasy, another reads as truth. The narrative resists easy resolution, and the incomplete excerpts suggest that the machine’s diagnosis may apply to both participants. This makes the story less about a technological breakthrough and more about the difficulty of knowing another person’s mind, even when it is displayed on a screen.

That old story about the screen exposing hidden jealousies—it stayed with me because it showed how much we keep unsaid. It reminded me of something quieter in Star Performer — A Closer Reading, where the tension isn’t projected outward but turns inward, like a slow ache. I think of both sometimes, late at night, the way you revisit a half-remembered conversation.