Recent results from Au+Au collisions at BNL RMC energy hint at explosive ha
dron production at the QCD transition rather than soft hydrodynamic evoluti
on. We speculate that this is due to a rapid variation of the effective pot
ential for QCD close to T-c. 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 critic
al slowing down.