The only part of a tree that is alive is the outer ring. The center is dead. Long dead. When a stump still has the will to live, it will produce offshoots on the side/base, but absolutely not in the dead center. When this happens, it by a seed that fell into a decomposing center. That part is rather fertile, but dead. This photo in particular is photoshopped, as no seedling has that many limbs and leaves. Critical thinking does remove the hopeful magic.