[hn_throwaway_99]

This really is completely independent of "AI". I remember seeing a famous presentation (maybe it was a TED talk?) about the "echo chamber" effect of personalization from the mid 00s - and IMO nearly all of the negative impacts discussed in that talk came to pass and then some. AI just makes it worse.

Edit: I think it was this I was referring to about "filter bubbles", https://youtu.be/B8ofWFx525s?si=rK1T-v5D0sAeiHJe . I was a tad mistaken, this was from 2011.

[wanderingbort]

This seems fundamentally different. Filter bubbles show you more of the externally generated content you engage with. These personalizations are trying to predict the content you generate.

While it may serve as a ballast for your personal voice changing over time, the whole point is to learn you not to feed you.