Some minds come up with ideas that are too out there for any normal person to understand. Of course, no idea actually pops into existence, that would break at least a couple of laws across the multiverse. They are always there in the parallel and alternate.
For example, the good ol' Doctor Gomad woke up with the strange sensation that he wanted to build a towering robot that could crush anyone in its palms. An idea that most obviously came from Dimension X where robots, heroes, monsters were normal everyday things.
This thought though was strange even for the doctor, as he lived in the Duckverse where everyone and everything was ducks and no one had opposable thumbs or even hands to speak ...