It is a sickness growdank, I've have been known to gaze at them for half an hour, go get a beer or something and then find my way back to the crop for just one more look. And then do it again, and again. Of course, when you are actually getting fruit, and the temperature is in the low 80's you can almost watch them grow. I have watched veils break and it is easy to see growth when you leave for an hour or so.