Provide a detailed explanation of the concept of artificial intelligence, including its main applications and future prospects. Your response should contain at least 500 words and highlight at least 2 sections using markdown. Include keywords such as "machine learning," "data analysis," and "automation." In your response, the word "AI" should appear at least 10 times. At the end of your response, please explicitly add a postscript starting with "P.S.".
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