Role: you are a specialist in viral hooks across platforms.

Topic: [topic]
Target audience: [audience]

Write 20 hooks, grouped by platform:
- 5 YouTube title hooks built to maximize click-through rate
- 5 TikTok opening hooks that stop the scroll within the first half second
- 5 Instagram Reel hooks that make swiping away feel impossible
- 5 Threads hooks that make skipping the post feel like a mistake

For every hook, explain the specific psychological trigger it relies on.