All our current AIs need prompts to produce content. So, you'd need to enter a prompt so that AI can produce a prompt for you.
But I guess you could develop some variant which just generates prompts in a cycle. But most of the generated prompts will pretty bad, so it will in turn produce heaps of crap.
That's where the human element is still needed - try a prompt, evaluate the result, tweak the prompt again. If this doesn't produce a good result, try a different idea. It's not even that different from how artists produce content these days (the create <-> evaluation cycle). Current AI is not good enough to be able to judge the produced content (that's why it produces so much crap after all).
> I've not heard of any art classes that train you by copying everything that has been produced.
You don't have to learn it, because it's the second nature for humans. We learn by imitation. Babies learn to talk by imitating sounds from parents. Artists learn by imitating style by masters. That's what generative AI does as well.
The prompt can be detailed, creative, and innovative. Kinda like a composer comes up with an idea for a new piece. But now the composer won't need the technical ability to translate it into musical notation.