New Features in C# 2.0—GetEnumerator: What about

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What about…

…the fact that in LinkedList you asked for each Node<T> in headNode? Is headNode a collection?

Actually, headNode is the top node in a linked list. Because Node implements IEnumerable, the node is acting like a collection. This isn’t as arbitrary as it sounds because a node acts as a collection in the sense that it can give you the next node in the list. You could redesign the linked list to make the nodes "dumber" and the list itself "smarter," in which case it would be the list’s job to iterate over each node in turn.