When I propagate a plant I am literally pulling (well, cleanly cutting) a part off of the plant. A non-zero cost clone if you will. Propagation seems appropri

When I propagate a plant I am literally pulling (well, cleanly cutting) a part off of the plant. A non-zero cost clone if you will. Propagation seems appropriately descriptive; as in, I'm pulling from a source to have a local copy - without telling the full story. The fiction (useful or otherwise) seems to be the use of propagation to explain why updates don't appear immediately. One doesn't follow from the other, as in, you'll always get the most recent information from your source . . . but have you considered TTLs? A useful fiction is always a stepping stone to a more fulsome understanding. All in all, a good article that takes another step past the fiction of propagate.