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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write a definition of a "black hole" in two sentences.
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a black hole is a region in space where gravity is so intense that nothing, not even light, can escape its pull. they are formed when a large star dies and collapses on itself, forming an incredibly dense object, much smaller than its original size.
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