  To first order, the initial cluster luminosity function appears to be
universal. This means that the brightest young cluster in a galaxy can be
predicted from the total number of young clusters based purely on statistics.
This suggests that the physical processes responsible for the formation of
clusters are similar in a wide variety of galaxies, from mergers to quiescent
spirals. One possibility is that conditions for making young massive clusters
are globally present in mergers while only locally present in spirals (i.e., in
the spiral arms). However, understanding the destruction of clusters and the
accompanying survival rates is more important for understanding cluster
demographics than understanding their formation. This is because only about 1
in 1,000 clusters with mass greater than 10^4 M_odot will survive to become an
old globular cluster. In this paper we briefly review this basic framework and
then develop a toy model that allows us to begin to address several fundamental
questions. In particular, we demonstrate that young clusters in the Antennae
Galaxies have a high ``infant mortality'' rate, with roughly 90% of the
clusters being destroyed each decade of log(time). We also advocate the use of
an objective classification system for clusters, with the three parameters
being mass, age, and size.
