Why linked lists are so important. LMPTHW

I am looking through this old C textbook and ran across an explanation of assigning parameters to arrays, Uploading: 1549649867824-313271906.jpg…

So when we’re running a program, we don’t want to pass a whole linked list around… Just the beginning node, the first pointer.
We don’t need the whole array to access the data,. I don’t know, it really kind of lit a light bulb for me, and it’s been a year since i finished that part of LMPTHW. thought someone else might find it useful too.