Most of us have our eyes open, looking at things ~16 hours a day, with the first 18 years of our lives heavily focused on learning about what those things are,

Most of us have our eyes open, looking at things ~16 hours a day, with the first 18 years of our lives heavily focused on learning about what those things are, plus we have the extra brain capacity to remember those things, and to think about them in an abstract manner. My entire photo library alone is over 100,000 photos - and since I took all of them I will have "seen" them.