It's funny because just yesterday (while driving or walking the dog... one of those times when the thoughts just wander) I was thinking about how one could star

It's funny because just yesterday (while driving or walking the dog... one of those times when the thoughts just wander) I was thinking about how one could start a series of tweets of the kind "This tweet is the copy of the previous tweet" with a way to start and stop the series while all still being true. And then thought there could be other kinds of challenges around that theme. Apparently there are.