It would be useful to have a somewhat in-depth visual of Twitter's engineering architecture along with an explanation of exactly where in the system these 'visi

It would be useful to have a somewhat in-depth visual of Twitter's engineering architecture along with an explanation of exactly where in the system these 'visibility filters' were implemented. There's also mention of an 'amplification block' which makes one wonder just how natural the phenomenon of a post 'going viral' really was in the past. Twitter claimed to be a user-driven platform (not counting bots of course) where user actions would dictate what was popular and what went viral, but now there are some questions about just how controlled such events were. Questions like "How much of the this was stage-managed?" and "How much was bot-driven?" deserve answers.