[JeanPierre]

Mori doesn't implement RRB-trees, thus doesn't support logarithmic concatenation.

[jonase]

Maybe mori could include core.rrb-vector[1]. Other interesting persistent data structures (by the same author) are persistent sorted maps and sets[2].

[1] https://github.com/clojure/core.rrb-vector [2] https://github.com/clojure/data.avl