One of my favorite coincidences, if such a thing exists, occurs when driving: to arrive at the destination at the same moment as a song ends.
I am intrigued by the general consensus about the speed of time. Out of our varied lives, we can all arrive at the office on a Monday morning and decide collectively, that was a fast weekend. For all I know, I could go to sleep tonight, have a strange dream, and wake up in 2043 groggy- and everyone would seem to agree, yes, the past thirty-one years did pass quickly. That's funny.