They didn't use monads, Kliesli categories, co-ends, profunctorial effects algebras, or string diagrams with functorial boxes.<p>It's almost as if this is a ninja who trains in a strip mall dojo, rather than a true backlog assassin.<p>For just like a true ninja reaches a point where no enemy is foolish enough to approach lest they be slaughtered, a true categorical ninja reaches a point where no PM is foolish enough to assign them work.