The original note, as written at the time
An added ability to streaming services where users can like and even share particular sections of a video rather than the whole thing.
Ongoing development
The ability to like and share a particular section of a video rather than the whole thing.
The whole of a video is the wrong unit for almost everything people want to do with it. A three-hour lecture contains four minutes that matter. A concert contains one chorus. A committee meeting contains the moment somebody admitted the thing.
Sharing the whole object forces the recipient to hunt, and the hunt is where most shared links die. A clip that opens at the right second and stops at the right second is a different artefact — it is an argument, and it can be made in a message.
The design details decide whether it is used. The selection must be one gesture, the share must carry a still frame and the time range, and the recipient must be able to play the surrounding context if they want it. A clip that cannot be widened is a fragment; a clip that can be widened is a doorway.
Liking a section is the more interesting half, because it produces a signal the platform cannot currently get: which minute was worth it. That is a far better input than a thumbs-up on the whole file, and it would change what gets made.
The risk is the same as every clipping tool — the out-of-context excerpt as a weapon. So the link should always carry the source and the timestamp, so that anyone can check.
Share the second that mattered.