For the "when did X first mention Y" queries, does it surface things you'd forgotten about that turned out to matter?

Or mostly just confirm what you half-remembered?

Trying to figure out whether the value of the loop is rediscovery or just precise lookup.

I think it's both, for me. I struggle with recall, so it helps me remember. I'm also using it to push to Todoist, etc. I need the memory jog, and then it helps me confirm things as they come back to me, to ensure I remember correctly. (ADHD, and across many projects as a PM).