# Source note — i-FER Flat Earth / larger rabbit-hole Facebook video

Prepared: 2026-08-11

## User lead
Facebook share URL: https://www.facebook.com/share/v/1DcYgYVxsf/?mibextid=wwXIfr
Resolved URL: https://www.facebook.com/reel/845545161203724
Uploader: i-FER Videos
Title: “Flat Earth is Just The Beginning of a Much Larger Rabbit Hole”

## Capture
- `yt-dlp` downloaded metadata, thumbnail and a local MP4 copy.
- Public article does **not** host the full copied Facebook MP4.
- Local video duration: about 815.49 seconds; AV1 video + AAC audio.
- Transcript generated with `faster_whisper` and saved as `transcript-faster-whisper.txt`.

## Transcript themes
The video argues that flat-earth advocates are unfairly mocked, says the globe is a belief system/religion, raises questions about stars, fisheye lenses, the horizon, Eratosthenes, moonlight, atmosphere/vacuum, ISS/satellites, Apollo, NASA, gravity, LIGO, black-hole imaging, Antarctica and a theological motive for deception.

## Source hierarchy
- Facebook/yt-dlp metadata for video provenance.
- NOAA National Geodetic Survey pages for geodesy, ellipsoid/geoid and GPS context.
- NASA Earth/ISS/Apollo pages for official space/planet context.
- LIGO for gravitational-wave detection context.
- Smithsonian/Foucault search-visible references were checked; direct Smithsonian HTML returned 403 during capture.

## Editorial position
This is a Managing Expectations evidence-literacy source-card. The video is real and the transcript is preserved. Its flat-earth conclusion is not supported by the source trail; the article separates legitimate skepticism/method questions from unsupported leaps.