I was thinking recently...that every little thing I "experience" in my day happens, and is jotted down as a few short notes in my mind. Then those notes are left there, associated with that event or experience, sitting around for future reference.
I like the "map" analogy. Life begins unexplored, waiting to be mapped and charted. As we go places / do things, we fill in that map. When we revisit an area of life, we know what's there, because we have a map of it--so it's kind of strange when that revisited place doesn't match the map, and we have to redraw it.
Maybe Si has a lot to do with the fact that humans' contact with the world happens only through our own subjective lens for each of us. My "idea" of what the world looks like is probably more real to me than the plain-factual physical real-world. But these interpretations of the world don't come out of nowhere, they are based on the sum of our prior knowledge, I'd say.
As I've said before, when people ask where is my computer, I search my brain for where I "know" the computer to be. My mind has pegged that it sits in that room between the kitchen and the living room. It was sitting there for years as the shared family-computer. It isn't there anymore, but I forget that sometimes without the right orientation of my thoughts.
So I guess it does work like someone jotting notes down about every single thing that happens to us. Sometimes those notes don't include concrete details like numbers (though lots of times they do), sometimes they are just facts about concrete things. Could be quantitative or qualitative, I think.
Looking for more solid examples?