> I don't understand what is causing people to have these really different experiences -- given the relatively minimal controls over timeline content I offer

> I don't understand what is causing people to have these really different experiences -- given the relatively minimal controls over timeline content I offer that the purpose of exTwitter's algorithms is to choose different content for different people - and insufficient controls keep user consent from interfering with that. As to why exTw algos choose what is chosen: The purpose of black boxes seems to be making sure users never, ever learn why.