Can Entropy Alone Explain the Arrow of Time?

This conceptual physics paper investigates whether the statistical increase of entropy is sufficient to explain the apparent direction of time. Beginning with familiar irreversible processes such as heat flow and the breaking of objects, the paper examines entropy through Boltzmann's statistical interpretation and considers the distinction between microscopic reversibility and macroscopic irreversibility. A thought experiment is used to separate the explanation of entropy increase from the deeper question of why the universe began in a low-entropy state. The paper concludes by outlining a possible computational approach for investigating the relationship between coarse-grained information and macroscopic irreversibility.