this post was submitted on 13 Jul 2024
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Right. And the proposed system doesn't allow for that either, as I understand it. Instead, you show ads for baby clothes next to an article about how to burp your baby, and then learn how many people buy baby clothes via that article without knowing anything about the people reading that article.
In theory, yes -- it's all aggregated and anonoymized. In practice, it's much more fine-grained than that, and ad companies under scrutiny have shown that their data can be deconvolved back to individual clients
Where did you get that from? That doesn't match at all what I have read. (At least not when it comes to this system - but maybe you're talking about Google's Topics API?)
https://www.eff.org/deeplinks/2023/11/debunking-myth-anonymous-data
That article is about:
Neither of those is what PPA does.
Of course, they're right that history has shown that this isn't easy. Hence: