In Haruki Murakami's book "South of the Border, West of the Sun," the character reflects on the uncertainty present in life, encapsulated in the concept of "probably." This notion suggests a world filled with possibilities that are often undetermined and fluid, highlighting the complexities of decision-making and the inherent unpredictability of future events.

The repetition of "probably" underscores a sense of hesitation and contemplation, prompting readers to consider how much of life is left to chance. The dialogue encourages a deeper understanding of the choices we make and the paths they lead us down, revealing the intricate interplay between fate and personal agency.