Final answer:
Postdramatic theatre theory by Hans-Thies Lehmann signifies a transformative approach to stage performance, focusing on sensory experiences over traditional narrative structures.
Step-by-step explanation:
Hans-Thies Lehmann's theory of Postdramatic theatre marks a shift from the traditional dramatic structures and narratives to new forms of theatrical expression that prioritize experience, feeling, and visual spectacle over a cohesive story. Key elements of Postdramatic theatre include the fragmentation of text, the use of multimedia, the blurring of roles between the performer and the audience, and a focus on the sensory and visceral aspects of theatre. This form of theatre challenging traditional narrative and representational conventions can be seen as a response to the modern world's complexity, where linear stories and fixed meanings are often inadequate for capturing contemporary experiences.