We don’t remember much. Compared to computers, we remember almost nothing.

Computers are way better at recording and keeping visual information than human minds. I think I actually have a pretty good memory for things like names, faces and ideas; and when I walk down the street I think I’m aware of most things I see. But if you quizzed me about my journey ten minutes later, I wouldn’t be able to remember all the parking signs, the store names, or even the faces of all the people I walked by.

But a computer can.