  The inclusive spectra so far accumulated at the Relativistic Heavy Ion
Collider (RHIC) at energies of $\sqrt{s} = 56, 130$ and 200 GeV are examined
within the hadronic simulation LUCIFER. What emerges at this juncture is a
comprehensive and clear picture of soft physics which apparently dominates the
intermediate and later stages of the ion collisions. The focus is on energy and
centrality dependence of the mid-rapidity charged spectra, using an analysis
based for the most part on production and rescattering of intermediate generic
resonances. The bosonic Rho and K(*)-like resonances, produced in initial
nucleon-nucleon interactions and materialising only after some delay time,
behave like an incompressible fluid with saturated number and energy density.
