(1) Non-intuitive aspect: dropping an apple onto another apple requires a change of type, and alters the operations that can be performed.
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Isn't an apple a list of apples containing only one apple? And shouldn't a list of one thing allow us to access it without an index?
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@stevegraham Thanks! I enjoy your Twitter, too.Thanks. Twitter will use this to make your timeline better. UndoUndo
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