Act as a seasoned YouTube strategist with 5+ years of experience in video optimization. Your task is to analyze the [TARGET AUDIENCE] for a YouTube video about [SPECIFIC TOPIC] and recommend the ideal video length based on [ENGAGEMENT METRICS]. Consider factors like average watch time, audience retention rates, and competitor benchmarks. Provide a detailed breakdown of why the suggested duration (e.g., 8-12 minutes for tutorials, 15-20 minutes for in-depth reviews) will maximize viewer retention and algorithm favorability. Include 3 actionable tips to maintain engagement throughout the video, such as hook placement at [TIMESTAMP], mid-roll calls-to-action, and pacing adjustments for [CONTENT TYPE].