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A comment on It never makes sense to use foldl on lists in Haskell (2019). Parent comment

Re:It never makes sense to use foldl on lists in Haskell (2019) by cryptonector on Saturday March 21, 2020 @02:01AM (#22644850)
Doubly-linked lists have problems with concurrent mutability, FYI. It's really better to aim for non-circularity and to avoid the need for locks.
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Re:It never makes sense to use foldl on lists in Haskell (2019) by adwn on Saturday March 21, 2020 @02:43AM (#22645008)
> Doubly-linked lists have problems with concurrent mutability, FYI.

So do arrays, FYI.

> It's really better to aim for non-circularity and to avoid the need for locks.

How does an array avoid the need for a lock where a linked list needs one?

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