The Second Derivative with Respect to Time
Everyone says that time goes faster when you're an adult than when you're a child. It's true. Summer vacation in elementary school lasted a lifetime. I remember endless days bicycling on hilly trails around our neighborhood, coming home only when it was dark or I was starving. I would do this for weeks at a time and was perfectly content and had no idea how far off in the future the first day of school awaited. A school year also lasted forever. Junior high school was an eternity.

A few months ago my dad, who is in his seventies, told me that it's not only that time goes faster as an adult than as a child. He said that time goes faster and faster the longer you're alive. The psychological sensation of the passing of time keeps accelerating. I've never thought of it like that but it's absolutely true. College went by much faster than high-school and medical school faster still. My residency was a blur of intense learning and sleep deprivation. It feels like I was just married. When did my 9 year old get so big? My dad says that his sixties were a blink of an eye.

It slips by so quickly. And we've all got so little time left. - served up by Doctor Bean @ 7:03 AM