is speech useless

No — speech is not useless. It serves multiple essential functions: - Communication of information: conveys facts, instructions, knowledge (Mill, On Liberty; Grice, "Logic and Conversation"). - Social coordination: negotiates actions, establishes norms, forms agreements (Searle, Speech Acts). - Expression and selfhood: expresses beliefs, emotions, intentions; helps constitute identity and agency (Wittgenstein, Philosophical Investigations; Taylor, Sources of the Self). - Persuasion and influence: shapes beliefs, decisions, political action (Aristotle, Rhetoric). - Cognitive and emotional regulation: thinking aloud, therapeutic talk, building empathy (Vygotsky; Rogers). Limits and caveats: - Speech can be ineffective or harmful (misinformation, manipulation, performative utterances). - Nonverbal, written, and technological channels sometimes supplement or replace speech. - Its value depends on context, speaker credibility, and receptive audience. Short conclusion: Speech is a powerful, often indispensable tool — neither universally sufficient nor always benign.