5K variations

A 5K is the very least I do on any day when I run, usually on the treadmill. It is amazing how this repetitive task, even when done almost every day, even when done for months in a row, remains an experience of diversity. It can feel novel, it can be a challenge, sometimes it's comfortable, sometimes it' s easy, sometimes it goes by in a rush, sometimes it takes forver, on occasion it hurts, at other times it's exhilarating. In esence it is the same thing, over and over again, but it never feels the same.