Synthesized answer
The provided passages do not contain information about what questions remain unanswered in the book "Excitable Speech: A Politics of the Performative". The passages describe the book's focus on the political performativity of language, the efficacy of injurious language, and its engagement with the work of Austin, Derrida, and Bourdieu [Passage 1]. There is no mention of any open questions or unresolved issues within the text.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: Excitable Speech by Judith Butler Description: On hate speech and power of speech Categories: Language Arts & Disciplines Pages: 214 Snippet: Negotiating the work of Austin, Derrida and Bourdieu, Butler offers a theory of the political performativity of language and illuminates the efficacy of injurious language.