At this point, we want to comment that the current state of ideas concerning the bonding in phase change materials reminds us of the words attributed to W.L. Bragg "The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them" . The new chemical perspective given by Manjón and coworkers opens an opportunity for reconciliation of the two previously proposed bonding models in PCMs if one considers the pros and cons of both the metavalent and hypervalent (or electron-rich multicenter) bonding models.