For the last 3 days my brother Matt has been cutting back one of our walnut trees. Our house was built in a former walnut orchard and all of the walnut trees around here have reached the end of their natural life and are dying. Matt is a tree man, or at least he used to be. Now that he’s in his forties he prefers to sell tree equipment. Anyway, the tree he was working on was a monster. It used to shade most of the back yard until just a few years ago when the leaves got smaller and the limbs started dying.