The prompt is funny, in itself. The notion of predicting the future is itself not a serious prompt, because there is no meaningful way of giving a serious response. But the addition of "Writ it into form!" makes it sound even more jokey.

If I gave a prompt like that and got the response I did, I'd be very pleased with the result. If I somehow intended something serious, I'd have a second look at the prompt, go mea culpa, and write a far longer prompt with parameters to make something somewhat like a serious prediction possible.

If you honestly can't see why this prompt from the get go was a joke, them you may have to cede that LLM have a better grasp as the subtleties of language than you expect.