… A series of 11 images envisions a sustainable future for Los Angeles — as dreamed up by artificial intelligence. One image shows a downtown streetscape, shaded by overhead walkways teeming with vegetation. Another adds solar panels to the hillsides beneath the Hollywood sign. Several contemplate vibrant futures for the L.A. River, tearing out concrete flood-control straitjackets along its banks and reviving the waterway with abundant plants and wildlife, as well as walking paths.