Grand Union Canal old and new

Quickly stopped on the way back home to photo a scene I had flown by earlier in the day.
The scene struck me how quickly the new springs up amongst the old these days. We have the same situation at work. Almost every couple of weeks a new face appears on the station ... "who are they, where are they from, don't they look young?" ... soon the "new" becomes the "old" and it starts again "who ... where ... don't?".