See, to me, the sequence of keypresses I make while banging on my keyboard seem like it could be represented as an ordered list. I may be missing something, though.
If something is unordered it does not mean it may not be ordered. It only says you cannot assume that it is ordered. (A Collection in Java/C# is an unordered contract, but a List is also a Collection.)
But the idea of a list also suggests an ordering to me.
But the idea of a list also suggests an ordering to me.