But it doesn't. Have you ever used facebook? Essentially it shows you whatever the highest engagement content is, which is normally a birth, engagement or some

But it doesn't. Have you ever used facebook? Essentially it shows you whatever the highest engagement content is, which is normally a birth, engagement or some other life event. Speaking as someone who develops ML models, there's no way that they are iterating multiple times per day, and it is 100% not tuned to specific users as they have so many. And how are they supposed to measure the impact of the lever? These are not trivial questions, but they are often treated as such in online discourse, which is pretty disappointing.