How it works

The scientific method has no single author. It grows out of the experimental approach that runs from Francis Bacon’s Novum Organum (1620) onward, and Carlson put it on the chart because it moves like a plot. Its claim is that every experiment is a story. Someone asks a question, makes a guess, tests it and gets a result, and that result usually raises the next question. Detective fiction sits comfortably inside that loop.

Six steps share the timeline in equal sixths. Problem (0–17%) is the moment something doesn’t fit and someone notices. Research (17–33%) gathers what’s known and hunts for patterns. At 33% the investigator commits to a testable guess, the Hypothesis, and holds it to the halfway mark. Experiment (50–67%) puts that guess at risk. Analysis (67–83%) reads the results, including the ones nobody wanted, and it’s where the lowest point usually hides. Conclusion (83–100%) delivers an answer along with a better question.

No hero or villain appears in the labels; evidence drives everything. The guess that commits the story arrives at 33%, later than the common threshold near 25%, and the halfway point is where it goes on trial. Bad news arrives as data in Analysis, so the low point is an intellectual blow as much as an emotional one. Dan Harmon’s Story Circle also loops, bringing its hero home changed; this loop closes on a fresh question instead.

Any story driven by figuring something out fits it, from the detective novel to the heist. The most useful discipline is making the guess specific enough to fail. A detective’s first theory works well as the Hypothesis when the audience can see how it might be wrong, and the Experiment plays best as a scene with real risk. Let Analysis turn up at least one result the hero didn’t want; that finding often becomes the low point. In a series, the Conclusion can settle one case and open the next.