It seems to me that they are pretty similar as they both feed a user with new posts from the friends/entities he/she follows. So what is the difference between these two systems that we should be aware of? Thanks.
I think they are the same but in Twitter design the author does not talk in details like he does here. Plus I remember the author on twitter design to look at this design for more details about the GenerateFeeds Service in general not just facebook or Twitter. You can apply this service on Instagram, LinkedIn, …ect All like service that include posts, sharing and comments.