"watching" can be applied to anything

[frnsys]

"watching" can be applied to anything - events, stories, concepts -

watching is "keep an eye on something, let me know when it changes and what has changed about it"
* story: when a story changes, let me know how many new updates there are
* concept: let me know when new events mentioning a concept happen
* event: let me know if new articles are added
* all of the above: if there is new discussion on any of them

AFAIK this just requires is having a watching attribute on users and an inverse watchers on the above entities, and updating API endpoints accordingly.

it will additionally require the specific handling of when an entity is updated, i.e. for stories it is when a new update/event is present, a concept is when a new event mentioning the concept happens, etc.

[frnsys]

note: not 100% certain this is the way to go, at least with if things are taking a more simplified approach. this is because in the simplified version, watching an event is the same as watching the story (that is, in the interface, if an event has "watch" button, in the backend it just watches the story the event is in)