At the age of 10, every day is a little different. By 50, many of your tasks are the same and long workdays begin to blend together.
Filmmaker John Koenig has a word for the ache present in your chest when you think about how fast time rushes by: Zenosyne, "the sense that time keeps moving faster."
Koenig is the creative force behind The Dictionary of Obscure Sorrows, a YouTube channel that creates a name for every emotion you can't quite label.
We all feel Koenig's Zenosyne, and this video is a first step in understanding why.