Probability — A Closer Reading

The Weight of Routine

The story’s early pages are dominated by repetition. Pettis arrives at five-ten p.m., Monday through Friday, “year in and year out.” Murphy saves him a beer during wartime rationing. Over decades, the two men age together, but Pettis’s life remains static: the same drafting job at Cartner and Dillson, the same shabby clothes, the same fearful demeanor. Even marriage, announced flatly over a beer, does not alter his routine. Trimble uses this accumulation of identical days to establish a baseline of normalcy against which the later time-travel premise will feel jarringly abrupt. The narrative voice—Murphy’s—is the only source of variation, offering wry asides like his reaction to Pettis’s first name: “I could see why he doesn’t like it.” The pacing is deliberately unhurried, mirroring the slow passage of years.

A Shift in Register

After decades of quiet observation, the story’s tone changes sharply when Pettis finally explains his proposal. He offers Murphy “the joint, fur coats, dolls, and a seat in Congress” in exchange for help preventing a nuclear bomb from falling into the wrong hands. The language becomes more urgent, with Pettis leaning over the bar and speaking in short, emphatic sentences: “And you are the one who stops them before they get started.” Murphy’s own voice shifts from bemused detachment to active engagement. The transition is marked by a physical action—Murphy throws his apron into a corner and rolls down his sleeves—signaling a move from passive chronicler to participant. Trimble does not linger on the mechanics of time travel; the focus remains on the characters’ reactions and the sudden acceleration of the plot.

Uncertainty in the Future Tense

Even as the story embraces its science-fiction premise, it retains a note of skepticism. Murphy agrees to run for Congress and cool the “lunkheads” who threaten disaster, but he is never allowed to read the history books that would confirm his success. “How can I be sure what to do if he won’t let me read about what I did?” he complains. This unresolved tension between faith and proof gives the ending an ironic edge. The narrative voice, which has been reliable in its mundanity, now confronts the limits of its own knowledge. Trimble leaves the reader with a sense of incomplete resolution: the time-travel plan works, but the narrator remains uncertain of his own role. The story closes on that note of doubt, refusing to provide a neat, triumphant conclusion.

Readers should pay attention to how Trimble uses Murphy’s voice to bridge two genres: the realistic barroom anecdote and the speculative time-travel plot. The story’s effectiveness depends on the contrast between the slow, observational first half and the rapid, almost offhand delivery of the science-fiction elements. Notice also how the title “Probability” resonates with the narrator’s uncertainty—he acts on a probable outcome, not a guaranteed one. The story rewards attention to its small, repeated details and the subtle shifts in tone that mark the transition from ordinary life to extraordinary events.

Thirty-one years of Rabelais Pettis taught me that quiet men often carry the loudest regrets. That slow, sideways approach to saving the world reminded me of another old favorite, The Moon Destroyers — Story, Setting & Ideas, which has the same patient, almost wistful way of turning small lives toward enormous outcomes. I still think about the draftsman sometimes. Strange how some stories stay.