Hydrothermal vents: life that runs on chemistry, not sunlight

A 6-beat faceless video outline for “Hydrothermal vents: life that runs on chemistry, not sunlight” in the Ocean and deep-sea life niche, derived from caption timing of 2 reference videos.

Angles

• Start from the rule: deep sea = food desert, biomass falls with depth — then show the exception
• Chemosynthesis vs photosynthesis in one side-by-side card: same job, different energy source
• Black vs white smokers: what the 'smoke' actually is
• Zoom out: vents as evolutionary refuges and a candidate setting for early life (labelled hypothesis)

Beat-by-beat structure

1. Hook (0:00–0:30): miles down, no sunlight — yet crowded oases on hot springs.
2. Rule (0:30–1:30): deep-sea biomass usually collapses with depth; why vents break the pattern.
3. Energy (1:30–3:00): microbes fix carbon using chemical energy (e.g. sulphide) instead of light.
4. Geology (3:00–4:30): black smokers (sulphides precipitating) vs white smokers (barium, calcium, silicon).
5. Food web (4:30–6:30): microbes → tubeworms/mussels/shrimp → predators; specialisation among neighbours.
6. Big picture + recap (6:30–8:00): ancient vents, fast adaptation, and the early-life hypothesis (labelled). Cite survey/ROV sources; original narration only.

Method

yt-dlp VTT captions (manual/uploader only) → timed beat heuristics → editorial topic synthesis (no ASR). Structure only; write original narration.