In Larry McMurtry's "Lonesome Dove," one notable observation made by Newt as he transitions into adulthood is the perception of time. Unlike childhood, where days seemed to stretch on endlessly, adult life presents a contrasting experience where time accelerates, making moments pass more swiftly. This shift in perspective is significant, as it highlights the complexities of growing up and the loss of leisurely, carefree days.

This change in the perception of time serves as a reflection on the responsibilities and realities that accompany adulthood. Newt's realization emphasizes how life becomes more urgent and packed with obligations, altering the way one experiences daily life. It suggests that maturity comes with both a deeper awareness and a sense of the fleeting nature of time, marking a poignant aspect of his journey into manhood.