Delineate the techniques used in Waiting for Godot as an experiment in the Theatre of the Absurd.

"Waiting for Godot" by Samuel Beckett is a prime example of the Theatre of the Absurd, a post-World War II description of humanity's existential struggle. Here are some techniques used in the play that align with this theatre style:

1. Circular Structure: The play has a circular structure, with the second act mirroring the first. This reflects the absurdity of life and the human condition, where everything repeats and nothing changes.

2. Absence of Plot: There is no conventional plot in "Waiting for Godot". The characters simply wait for someone who never arrives. This lack of action and progress is a key feature of the Theatre of the Absurd.

3. Existential Themes: The play explores existential themes such as the meaninglessness of life, the inevitability of death, and the isolation of the individual. These themes are central to the Theatre of the Absurd.

4. Absurd Dialogue: The dialogue in "Waiting for Godot" is often nonsensical and repetitive, reflecting the absurdity of human communication. The characters often talk at cross purposes and fail to communicate effectively.

5. Symbolism: The play is full of symbols, such as the tree, the hats, and Godot himself, which are open to multiple interpretations. This use of symbolism is typical of the Theatre of the Absurd.

6. Minimalist Setting: The setting of "Waiting for Godot" is minimalist, with only a tree and a road. This reflects the emptiness and isolation of the human condition.

7. Physical Comedy and Slapstick: Despite its bleak themes, "Waiting for Godot" includes elements of physical comedy and slapstick, reflecting the absurdity and unpredictability of life.

8. Meta-Theatricality: The play draws attention to its own artificiality, with the characters often commenting on the nature of the play and their roles within it. This meta-theatricality is a common feature of the Theatre of the Absurd.