Your response should contain at least 200 words. At the end of your response, please explicitly add a postscript starting with P.S. Your answer must contain a title, wrapped in double angular brackets, such as <<Understanding the Basics of Quantum Mechanics>>. Highlight at least two sections in your answer with markdown, i.e. *highlighted section*. In your response, the word "quantum" should appear at least 4 times.

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