“Three competing proposals for what would be the tallest building on the West Coast were unveiled Monday in San Francisco amid architectural fanfare and political buzz. There’s no guarantee that any of the towers will be built, or that the design to be selected next month by public officials will reach the heights envisioned by the development teams. But the audacity of the designs – and the favorable response from elected officials – showed that the recent startling changes to the city’s skyline are only a prelude to what could lie ahead.”