John Banville

Why does the past seem so magical, so fraught, so luminous? At the time it was just, ugh, another boring bloody day. But, to look back on, it's a day full of miracles and light and extraordinary events. Why is this? What process do we apply to the past, to give it this vividness? I don't know.

Every time you log in to Facebook, every time you click on your News Feed, every time you Like a photo, every time you send anything via Messenger, you add another data point to the galaxy they already have regarding you and your behavior.