  This is a short account of the basic principles of a comprehensive theory of
the vitreous state, looking at glasses and their eventual <<melting>> into a
liquid state (the inverse glass <<transition>>) from the perspective of their
low-temperature properties, then working all the way up to the melting
temperature (and back again). The theory is still in the making, so only
essential guidelines will be provided. There appears to be no ideal-glass
transition, no ideal-glass state, but a first theoretical justification of the
Vogel-Fulcher-Tamman law can be provided, making glasses truly fascinating
quantum as well as topological substances.
