Normally I would downvote a comment that amounts to "read the article", except that this one is entirely on point. One of the classic problems was size and per

Normally I would downvote a comment that amounts to "read the article", except that this one is entirely on point. One of the classic problems was size and performance. However both problems have now disappeared. Operations are `O(log(n))` and the size overhead is a factor of 1.5-2.0. That's quite workable.