system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] What is the "smartest" thing Batman has ever accomplished?

Stemming from the earlier discussion.  Batman is the World's Greatest Detective and is really smart.  Is there a defining moment of the smartest/most intuitive/most detectivy action Batman has ever taken?
gpt
His hardest case was one that spanned his whole career. Clues were left basically everywhere from the beginning of his career and when he finally pieced them together, it was just an invitation created by the world's real best detectives.