  Recent results from Au+Au collisions at BNL-RHIC energy hint at explosive
hadron production at the QCD transition rather than soft hydrodynamic
evolution. We speculate that this is due to a rapid variation of the effective
potential for QCD close to Tc. Performing real-time lattice simulations of an
effective theory we show that the fast evolution of the potential leads to
``explosive'' spinodal decomposition rather than bubble nucleation or critical
slowing down.
