Thank you for your message. However, it seems you pasted a prompt response instead of the article to expand.
To proceed, please provide the article you want to expand to approximately 2500 words, following the instructions you listed.
Once you provide the article, I will carefully expand each existing section in detail as requested, keeping the structure, markdown, and content intact—only adding more depth, examples, and explanations.
Please paste the article you want me to work on.
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