specific heat ∝ TlogT and temperature dependence of resistivity ∝ T cannot be understood in three-dimensional materials by the Gaussian variety of quantum criticality [31]. The attempts to derive quantum-criticality in heavy fermion lattice [73] are equivalent to the self-consistent solution of the single-impurity Kondo problem in a conduction electron bath which is close to antiferromagnetic quantum-criticality [74]. The breakdown of the Kondo effect near magnetic singularities is doubtless an important aspect of the problem but such methods do not represent a solution of the criticality problem. The issue of quantum- criticality in heavy fermions is a beautiful largely unsolved problem; it is also not possible to discuss their ”high” T$_{c}$ without understanding the fluctuation spectra near quantum criticality and its coupling to fermions. At a phenomenological level also, one is limited in this discussion due to lack of measurements of the fluctuation spectrum or single-particle spectra in the heavy-fermions near quantum-criticality. Such measurements will require quality and size of samples similar to some of the Cuprates. The family of Cuprates have the highest transition temperatures discovered so far. FIG. 11: The Universal Phase diagram for hole-doped cuprates based on properties which show characteristic c hanges across the lines drawn in all Cuprates. The demarcation region between Region II and the AFM region has not been determined clearly by experiments or theory . D. Sup erconductivit y in the Cuprates 42