What is peripeteia moment?

The term "peripeteia" refers to a significant moment or discovery in a narrative that drastically changes its direction. According to an explanation on the Jordan Harbinger Show, Aristotle argued that all insight comes through a series of discoveries known as anagnorisis, which lead to a peripeteia. This is essentially a discovery that pivots the direction or outcome of the story. For instance, a classic example of peripeteia is when Bruce Willis's character in "The Sixth Sense" realizes he is dead, which entirely shifts the viewer's understanding of the narrative 1.