Take n objects and put them in a container.? What is the
configuration space of all the ways they can fit in the container without
intersecting?? How does the topology of that configuration space change
depending on the size of the objects and the size of the container?? In
particular, given a set of objects, how big does the container have to be
for the configuration space to have homology in degree j?? We compare the
setting of squares in a rectangle to that of segments in a disk.