  We discuss what the presently collected data tell us about the mechanism of
multifragmentation by comparing the results of two different models, which
assume or show an opposite reaction scenario, with the recent high statistics
$4\pi$ experiments performed by the INDRA collaboration. We find that the
statistical multifragmentation model and the dynamical Quantum Molecular
Dynamics approach produce almost the same results and agree both quite well
with experiment. We discuss which observables may serve to overcome this
deadlock on the quest for the reaction mechanism. Finally we proof that even if
the system is in equilibrium, the fluctuation of the temperature due to the
smallness of the system renders the caloric curve useless for the proof of a
first order phase transition.
