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> But without cookies, I don't see how you would recognize that visit as the same person as yesterday and integrate the sports and economy interests into a persistent profile.

If you gather enough of that "anonymous" data, and particularly if you combine it with other data sets (as they claim they are intending to do), then it's not that hard to recognize individuals based on their usage patterns and metadata.

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But does it matter if you don’t know who they are?

Going with that premise for the sake of argument: Nah, probably not.

But that premise is well-known to be in conflict with established reality. Identifying specific individuals from these sorts of data points is famously, disturbingly easy to do. People even do it just for fun, almost like it were an Advent of Code challenge. That's the reason why there will never be another Netflix Prize.

It does to me.

Why?

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