We're often told that one of the keys to leading a fulfilling life is to learn something new every day. I suppose our success at this depends on what we spend most of our days doing, but I would wager that most of us are better at it than we might realize.
While it's true that we may not specifically itemize what we learned at the end of the day, our brains aren't always predictable when it comes to what information they'll absorb and what they'll forget.
I don't know about you, but I often find myself suddenly remembering a relevant fact in a conversation without recalling how or when I came across it. And once you've found your way through this list, you've more or less set the stage for more or less the same phenomenon.
So I'll definitely understand when you suddenly remember one of the facts I've shared, but don't remember who I am in the slightest.