1. Catharsis: Aristotle's theory of catharsis suggests that audiences experience a release of emotions, such as pity and fear, during a tragedy. Knowing the inevitable downfall of Oedipus would have heightened these emotions, as the audience would anticipate the tragic events to unfold.
2. Dramatic Irony: The concept of dramatic irony, where the audience is aware of information that the characters are not, would have created a sense of suspense and tension. The audience's knowledge of Oedipus's fate would make them more invested in his journey and actions.
3. Character empathy: The awareness of Oedipus's tragic destiny could have fostered a deeper empathy for the character. The audience might have felt a mix of sympathy for Oedipus's suffering and a sense of dread knowing the path he was on.
4. Moral contemplation: The play's exploration of themes like fate, hubris, and the search for truth would have resonated with ancient Greek audiences. Knowing the outcome, they could reflect on the moral lessons and contemplate the consequences of Oedipus's actions.
5. Artistic appreciation: The knowledge of the ending allowed the audience to appreciate the playwright's skill in crafting a compelling narrative and building dramatic tension. They could focus on the artistry and structure of the play rather than being surprised by the plot twists.
In conclusion, ancient Greek audiences' familiarity with the ending of Oedipus Rex would have enriched their experience of the play by amplifying emotional responses, creating dramatic irony, fostering empathy, encouraging moral contemplation, and allowing for a deeper appreciation of the playwright's craft.