I don't have the policy answers. What I hope the book achieves is that it fixes our aspirations on making technology more complimentary to humans. And if people come up with other ideas for doing that policy or otherwise we are completely open to it. But let me give you in that spirit. The other three policy applications. One area in which we think digital technologies online interactions and AI are being misused is through digital ads. We view digital at taxes as a way of opening up new business models so that they can survive against free. It's like Wikipedia doesn't have misinformation but Facebook Twitter Reddit do. Why is that? Because of their business model.