It’s reasonable to see the completion of The Bullitt Center (it officially opens in April) as the most important architectural event since the completion of the Olympic Sculpture Park in 2007, which in turn was the most important architectural event since the completion of the building that made Rem Koolhaas a star, the Central Library, in 2004. What the Bullitt Center wants to be is a breathing, self-regulating, self-sustained organism. It will have something like a brain and a digestive system, and it will process human waste. It will close a window if you leave it open. It will tell you exactly how it is working, how it is saving energy, how it is making your life and the world around it better. Enter the future, Seattle.