Reprogrammed Earth

Earth's gravity has just been flipped,

I think it was my coding script,

I edited Earth,

A thrilling rebirth,

Wait, the code I have to encrypt.

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I have a question. I know that sometimes poems have to be confusing, but can you at least understand it in your own way? Do you have any interpretation of what I the poem is about? Or is it not clear at all?

This is also my first time writing limericks, so do you have any general comments? For example, is it not that funny, or is the rhyming not that great? Put any suggestions in the comments.

Thanks!