Here Is Your Much-Needed Explainer On "The Batman" Post-Credits Scene

ICYMI, Matt Reeves took a page out of the MCU playbook and gifted us with a post-credits scene. And no, not the ~veiled~ hint that the Joker could make an appearance in the next film...

Anonymous prisoner: What is it they say? One day you're on top, the next, you're a clown. Well let me tell ya, there are worse things to be...Don't be sad! You did so well. And you know, Gotham loves a comeback story. 
Riddler: Who are you?
Anonymous prisoner: Well, that's the question, isn't it? Riddle me this: the less of them you have, the more one is worth.
Riddler: A friend.