it is a catalyst for change as many people may know, the obama foundation's mission is to inspire, empower and connect people to change their world. and we can talk a lot about what literacy means within that kind of a framework. but the center is also part of what we would like to think of as a civic commons. and this is where public libraries are so important to. our mission. but we think about the way in which there is a museum which as you mentioned, will be this vertical structure is connected to a building that we call the forum, which is where all the multi-purpose spaces are. and then we have the branch of the chicago public library, which we'll talk more about obviously. and then a fourth building, which is an athletic center. and so this is all tied to the idea of health and wellness to idea of sustainability. it is a revitalization of this historic park and so we think about democratic space making again to come back to the important kind of social infrastructure work museums do within the idea of democracy itself. but i also mentioned that there is great lawn, there's an access