I made the mistake in my last post to ask about how "pointers" are helpful.
And since that went on with a page about how pointers are helpful, I figured I better just ask in a new post since it is completely about something different.

Instead of asking how "pointers" are helpful, I meant to ask

"How are DOUBLE pointers helpful", since they are already setup to be helpful in the sense that you can point to something else, or in the case of an array of pointers, easily change the sort easily.