In this three-part diagram, tension is graphed on the Y axis, and time is graphed on the X axis. Tension is introduced at the end of the first act or the beginning of second, it rises and rises throughout the second act, and then it is released in a climactic moment. The third act addresses the aftermath and the results that spring from this release of tension.
I really like how this three-part diagram connects the structure of tension to the flow of time because it makes the shape of a story feel almost mathematical. The idea that tension is introduced right at the transition into the second act feels accurate to most stories I enjoy—there’s always that moment where things shift from setup to real conflict. I agree that the gradual rise through Act Two is what keeps audiences engaged, because it mirrors how stakes build in real life. What stood out to me most is the idea that the third act isn’t just a resolution, but a space to examine the consequences of the climax, which makes the story feel more meaningful instead of just abruptly ending. Overall, this model helped me visualize why the “And, But, Therefore” structure works so well in narrative writing.