Comment by locusofself
Comment by locusofself a day ago
Perhaps I misunderstanding, I thought the actual content of each tweet was being duplicated to every single timeline who followed the author, which sounded extremely wasteful, especially in the case of someone who has 200 million followers.
From the linked article: "Additionally, a reference to your post is 'fanned out' to your followers so they can see it in their Timelines."
So not the content, just a sort of link to it.