I need a detailed response about the importance of digital literacy in the 21st century. Your response should contain at least 5 sentences and at least 100 words. Highlight at least 2 sections in your answer with markdown, i.e. *highlighted section*. Include keywords *education*, *communication*, *employment*, *information*, *internet*. At the end of your response, please explicitly add a postscript starting with *P.S.*.
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