The video on your device is a survivor of thousands of miles of fiber optic cable and dozens of server handoffs, preserved because someone, somewhere, found it too striking to let disappear.
Algorithms like H.264 or H.265 (HEVC) looked for redundant data. If the sky was a consistent blue, the code "shorthand" saved space by not recording every single pixel's color individually. very beautiful(1).mp4
The reason the file is named "very beautiful" instead of a descriptive title like "Sunset over Santorini" points to the of the content. In the world of internet archiving, files with such generic, emotive names often belong to the "Aesthetic" subculture—media meant to trigger a sense of calm, awe, or "frisson" (chills) in the viewer. The video on your device is a survivor