That’s a single line needed that clarifies that derivative works originally created by AI are not copyrightable, to make it explicit and distinct from the ability to claim copyright on non-transformative works made from public domain content. AI created works cannot be copyrighted (and that should include things like software) and derivative works should now be considered non-copyrightable as well. The onus should be shifted to the creator to prove that their work is transformative in order to claim copyright over the work.