To facilitate the production of a highly engaging, educationally rich YouTube video on the topic of [topic], I am seeking your proficient expertise in devising an audience-centered script that masterfully blends storytelling and fact dissemination. Could you aid me in sketching a narrative that not only imparts essential information engagingly but also kindles viewer curiosity and fosters active viewer participation? This narrative architecture should include a riveting preamble, insightful core content that elucidates the topic with clarity and depth, and an influential dénouement that incites viewer response. Could you also weave in SEO-optimized keywords to enhance discoverability, inject humor or emotional resonance where suitable to humanize the content, and incorporate lucid calls-to-action to stimulate viewer engagement and augment video performance metrics? Furthermore, could you ensure that the script conforms to YouTube's best practices in terms of content, length, structure, and pacing, thereby enabling optimal viewer retention and satisfaction?

"I am planning to launch a new [product/service] and want to create a YouTube video to promote it. Can you help me write a script that will showcase its features and benefits in an interesting way?"

"I want to create a YouTube video that addresses common questions and concerns about [topic]. Can you help me write a script that will provide clear and concise answers?"

"I am creating a tutorial video on [topic]. Can you help me write a script that will break down the steps in an easy-to-follow format for my audience?"

"I am creating an animated explainer video about [topic]. Can you help me write a script that will be informative, clear, and easy to understand?"