  I agree that this should be the core of the article. Furthermore, the should be a section on * Relaxation near the glass transition ** Relaxation into equilibrium vs fluctuations in equilibrium ** Stretched time or frequency dependence ** Time-temperature superposition ** Temperature dependence of characteristic times / of viscosity ** Angell's classification strong vs fragile glass formers ** Indications for a change in dynamics at a cross-over temperature Tc some 10 or 20% above Tg  I actually wanted to work on that, but found it impossible as long as the article was full of off-topic material.  I disagree on a detail: the viscosity criterion may be the most widely used in some communities; in practice, in characterizing new glass-forming materials, differential scanning calorimetry is much more accessible than viscosity, and therefore much more often used.    