  We examine several recent lattice-simulation data sets, asking whether they
are consistent with infrared conformality. We observe, in particular, that for
an SU(3) gauge theory with 12 Dirac fermions in the fundamental representation,
recent simulation data can be described assuming infrared conformality. Lattice
simulations include a fermion mass m which is then extrapolated to zero, and we
note that this data can be fit by a small-m expansion, allowing a controlled
extrapolation. We also note that the conformal hypothesis does not work well
for two theories that are known or expected to be confining and chirally
broken, and that it does work well for another theory expected to be infrared
conformal.
