Sitting at the breakfast table, my wife Susan was reading the paper, and when she got to the end of a story, dragged her finger down the paper to try to scroll the newspaper.

I’ve sat in a movie theater watching trailers, and glanced at the bottom of the screen to try to see the progress bar to see how much time was left in the short clip.

Max said when he’s writing on paper with a pencil, and makes a mistake, his left hand twitches as if to hit cmd-Z.