 Modal interpretations with an a priori fixed preferred observable (MHI, and Bohm’s interpretation) are immune to the above objections: decoherence by the environment need not be invoked in order to account for the definiteness of the apparatus’ pointer position (neither in ideal nor in non-ideal measurements). However, in MHI there still is a relation with the decoherence program. In fact, the measuring apparatus is always a macroscopic system with a huge number of degrees of freedom, and the pointer must therefore be a “collective” and empirically accessible observable; as a consequence, the many degrees of freedom —and the corresponding degeneracies— of the pointer play the role of a decohering “internal environment” (for details, see Lombardi et al. 2011). The role of decoherence in the MHI becomes clearer when the phenomenon of decoherence is understood from a closed-system perspective (Castagnino, Fortin, and Lombardi 2010). (See the entry on the role of decoherence in quantum mechanics.)