I think the joke is that God is capable of creating something without fully understanding it. But the comic seems to indicate that God wasn’t aware of his ability to do that, which I think is a bit odd. Even humans are aware that we can confuse ourselves by creating complex systems that not even we understand. I assume God would also be aware that he’s smart enough to trick himself, but who knows?
But in what way is it supposed to be funny?
This just seems to comment on religion, but it doesn’t do so in a way that makes any sense.
It seems to poke fun at god… But it does it with literally zero teeth.
There are much more valid paradoxes to point out in the imaginary idea of a god, an “omnipotent all-powerful force for good” cannot exist in a world where evil exists, or that force is either not good, not omnipotent, or not all-powerful.
It’s just my personal speculation. What’s your interpretation of the joke?