"We can’t avoid the passing of time, even at the DMV, where time seems to come to a standstill. And daylight savings notwithstanding, time always ticks forward. But why not backward? Why do we remember the past and not the future? For a group of physicists, the answers to these deep and complex questions may arise from a familiar source: gravity." - urbansheep@gmail.com

Adding the second arrow is fun! - 9000

I'm my own grandpa? - Ken Morley

^ No, but there "might have been" another you, a contramotive one from your POV. - 9000