I make no statement that Project Sandbox should not be scrutinized -- merely that it's better than third party cookies -- and I don't believe increased antitrust scrutiny of Google will lead to better user privacy.
I respectfully disagree and defend the position you're replying to. I take issue with your provocation because I fear that asserting too much focus on a still-frame snapshot without looking at the full motion, that seems misguided. Politics constitute the motion around any spec snapshot.
Focussing only on the technical merit of the proposal without also prioritizing the living, moving context around it, that's advocating a sort of blindness imho
The problem is that nobody is bringing these two together. Don't just focus on context without reading the actual proposal. Your comment says nothing about the technical proposal.
It's the largest, most invasive and pervasive privacy intrusion in history, and its beneficiaries includes many HN regulars.
3rd party cookies should be replaced with _nothing_, not this "privacy" API.
Besides, it's not wrong to listen to the losers; you might learn about some unfair competition.
Given that, why should I not be skeptical of their Privacy Sandbox initiative?