I liked the idea, I’ll leave it here…
The Joker’s superpower is his super intelligence, realizing that he lives in a fictional world. He is the only character who looks directly into the camera, as if to say: “I know you’re watching my show!” Total despair and awareness of your own meaninglessness.. How would you behave if you found out or guessed that you live in a virtual world, for example, simulated on a supercomputer? What do you usually do when in a dream you realize that this is not real?