* default-- show me a single page posts of my friends by date
* sadness-- choose post order and timings to maximize my sadness
* filter bubble-- choose posts to maximize my outrage about alternative viewpoints
* rabbit hole-- capture maximum amount of my attention on the platform by feeding me conspiratorial and junk content
* gamblevision-- infinite scroll, maximize my time clicking upvote/like buttons, karma building, interacting with a/b tested time-wasting games, spending karma points on loot box type bullshit, etc.
* human bioweapon-- fake news injections, with an intersection between my inferred personal tastes and a slowly increasing menu of anti-scientific covid conspiracies
Then give me, the user, an analytics page where I can see my engagement, sentiment analysis, and measurements of my changing viewpoints for each theme.
If you ask, "Why would anyone ever use such a manipulative, unhealthy platform?" well...