[unimpossible]

If people using the tool come up with the same designs/artwork, it's pretty clear the tool is responsible. If people have very different outcomes using the tool, then the people are responsible.

What makes it difficult is that we are just entering into a phase where a little bit of knowledge and artistic ability when combined with the right tool can take you much farther than either of those alone. And it's not just paintings but also music or even creative writing (using something like GPT3).