linearity

This term describes a state of directness and proportionality. In physical or geometric contexts, it refers to the literal quality of a straight line, suggesting a lack of curvature or deviation. In technical and mathematical fields, it implies a predictable, one-to-one relationship where the output scales exactly with the input. When applied to storytelling or time, it denotes a chronological progression. A linear narrative moves forward without interruption, contrasting with non-linear structures that utilize flashbacks or fragmented timelines. Because it is an abstract quality, it is treated as an uncountable noun and does not typically take a plural form.