Relativistic heavy ion collisions --- Where are we now? Where do we go?

Abstract

Various aspects of the current status of ultrarelativistic heavy ion collisions are reviewed. Perspectives of heavy ion physics in the future are given as well.Comment: 8 pages, 4 postscript figures, LaTex, Invited talk presented at the KEK-Tanashi International Symposium on ``Physics of Hadrons and Nuclei'', Dec.14-17, 1998 Tokyo, Japan, Submitted to Nuclear Physics