Imagine a river flowing freely. After a storm, a tree falls into the river, obstructing the water flow. Over time, silt and leaves are collected by the fallen tree, further compounding the obstruction. If the tree is not removed, the flow will continue to reduce. Eventually, it will become completely blocked.

Similar to the ineffective concept, The New England way of not removing Deadwood from the forest floor or in standing trees, Preferring coniferous propagating grossly over high oxygen producing deciduous trees, And voila 700000 people out of power over Christmas jettisoned to the dark ages again more and still.
#Dimwitted
Or as Granny would say f****** morons...