They only have to remove your personal data. So the company / AI model is not allowed to have data specifically on you, but it can have the average age of people living in your town even if your data contributed to calculating that average.
That said, Apple here never had affirmative consent, so they can’t get away with just doing this.
How do they retroactively remove the knowledge the AI has gained from analyzing all of our personal information?
They don’t need to.
They only have to remove your personal data. So the company / AI model is not allowed to have data specifically on you, but it can have the average age of people living in your town even if your data contributed to calculating that average.
That said, Apple here never had affirmative consent, so they can’t get away with just doing this.