So I just stood there and stared up at the ceiling, at the bottom of the floor of Heaven. It didn’t look like much. Our fat cylinder is actually two cylinders, one in-side the other. Down here in the outer one we make our own "down" with axial rotation are all the more mundane aspects of our operation: dormitories, cafeterias, the air-lock deck, where we haul in returning — boats, Communications and Wards, where I’m careful never to go.