shock was seeing how the public is able to assimilate something that they feel very kind of excited and comfortable with. i was, like, this building has been in my head, it's been on drawing boards. they've never seen it. how do they know how to use this building so well? and that was really beautiful. and, of course, there's, you know, lots of things reasons for that. but then, you know, i started seeing people, when i'd go back i'd see people sort of meeting, having dates - being intimate, or being studious. or having arguments. and i don't know, when architecture's alive like that, it's, for me, the best. i mean, i kind of - i can practically well up, its kind of a bit weird. but i really find it very, very powerful and moving. >> you've created an affordable housing project in harlem. talk to me about sugar hill. >> sugar hill is really important to me, because it's my first large-scale housing project. that my first large-scale project for housing was for the homeless. those...