Are you referring to https://security.apple.com/com/blog/private-cloud-compute/?
The only way that AI will ever be able to replace each of us, is if it gathers our entire audio, text, etc history. PCC seemed like the only viable option for a pro-AI, yet pro-privacy person such as myself. I thought PCC was one of the most thoughtful things I had every seen a FAANG create. Seriously, whoever pushed that should get some kind of medal.
Are you saying that there is no technical solution for privacy and AI to coexist? Not only that, but that was the blocker?
I am genuinely interested if anyone can provide a technical answer.