Ah, fair point. I guess it's incorrect to say it's impossible to learn _anything_ about a user as an individual using data generated using differential privacy.

Ah, fair point. I guess it's incorrect to say it's impossible to learn _anything_ about a user as an individual using data generated using differential privacy. Just that what you do learn is more of a small statistical possibility than a sure thing. (E.g. "The user visited this site." vs "There is a 5% higher than average chance the user visited this site.") And that's even assuming you already know who "the user" is (which certainly isn't a given).