  The blast-wave (BW) spectrum model has been applied extensively to
nucleus-nucleus collision data with the intention to demonstrate formation of a
quark-gluon plasma (QGP) in more-central A-A collisions. More recently the BW
model has been applied to p-p, d-Au and p-Pb collisions. Such results are
interpreted to indicate that ``collectivity'' (flows) and QGP appear in smaller
systems. I consider variations of the BW model and supporting assumptions. In
this talk I review BW analysis of identified-hadron spectra from 5 TeV p-Pb
collisions and examine the shape evolution of model spectra with collision
centrality. I evaluate data-model fit quality using conventional statistical
measures. I conclude that the BW model is not a valid data model.
