as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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explain the concept of dark matter.
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dark matter is a form of matter that is hypothesized to exist but is difficult to observe directly. it is thought to make up over 80% of matter in the universe, yet its exact composition remains mysterious. dark matter interacts with normal matter only through gravity, making it difficult to detect and study through traditional observational techniques.
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