How does Krapp’s Last Tape explore memory and identity?

In Samuel Beckett’s one-act monodrama Krapp’s Last Tape, the protagonist’s interaction with his own past serves as a profound exploration of the mystery of the self and the instability of identity.12

As an old man, Krapp listens to tape recordings he made decades earlier, creating a stark contrast between his current state and his younger, more hopeful self. This process highlights several key themes:12

• The Alienation of the Self: To the elderly Krapp, the voice on the recording is that of a "naive and foolish stranger". This detachment challenges the notion of a continuous, unified identity, posing the question: in what sense can the younger and older versions of the same person be regarded as the same human being?12
• Memory as a Fragmented Record: By listening to his past confessions, Krapp confronts his former idealism and hopes, often reacting with savage commentary. The tape acts as a physical manifestation of memory, yet it fails to bridge the gap between who he was and who he has become.12
• The Essential Human Condition: Beckett uses this interaction to strip away the "external trappings of existence," focusing instead on the basic anguish of the human condition—specifically, the difficulty of defining the "I" when one is both the observer and the object being observed.2