Earlier quoted context omitted.
Conceptually a feature similar to Recall doesn't have to involve sending any data to third parties. It should not need to be a service just a piece of software running locally, doing OCR and full text search indexing using local compute. Incidentally I often tell my friends I run an app on my phone that captures my location 24/7 and they would initially sound horrified. But then I tell them all my location data is no…
“I store all my location data and I see no problem because it's stored locally” is the new “I store all my passwords on a post-it and I see no problem about it”. The more you store, the higher the risk, simple as that.
You have a convincing argument for not taking photos and not writing notes down. In fact, why write anything down? Remember everything like Socrates asked people to.