Gardner Fox had a mind like a steel box. I don't think anyone was quite able to fathom where he got the stuff he wrote into his stories or how his logic worked at times.
I mean, a giant telepathic starfish comes down to enslave humanity! What can stop his mental domination? ...why, lime of course!
One of the other early JLA-JSA teamups also has that story where the evil Earth-1 Johnny Thunder steals the Thunderbolts and has it remake reality with criminals gaining the powers of the JLA. That one makes my brain hurt.