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> Topics API doesn't use the full history That's true, or rather no site gets access to the full history, or to topics that are derrived from the full history,
by amadeuspagel 3y ago
> Topics API doesn't use the full history
That's true, or rather no site gets access to the full history, or to topics that are derrived from the full history, but only to that part of the history that it "observed".
> a site X won't get topics derived for site Y
Unless site Y allowed them to, which of course site Y can also do by allowing them to set a third party cookie.