[jerf]

I think that's directly related. The answer to the question "Why should we replace our lists?" is that you can avoid known failure cases with lists at a relatively small price in complexity and memory in the worst case, and sometimes get big gains. Singly-linked lists are not suitable for a concurrent world and functional programming really needs to stop putting lists on a pedestal and writing them into their very syntax. There's actually other problems they cause, too, but the concurrent problem is a real killer, because you can not just program your way around it, you need a fundamentally different data structure.