The string/M theory, cosmology, General Theory of Relativity and Quantum Physics are the approximate descriptions of Nature so there appear many incorrect assumptions and wrong interpretations. Here we pointed the limitations for the basic method applied in the Quantum Physics associated with the action of orthogonal groups on column vector representing a spinor. Such action leads to the spin representations. Spinor can represent the half-integral spin of a quantum loop in a pair that returns to original position after 720 degree rotation. It is characteristic for the zero-helicity vector particles. This property, the theory of spinors itself, the classification of the Clifford algebras and the double-covers/spin-groups that are the Lie groups, suggest that succeeding phase transitions of the superluminal non-gravitating Higgs field can be in existence and it is the foundations of the lacking part of ultimate theory i.e. the Scale-Symmetric Theory. In the last theory there as well appear the scalar condensates and the imaginary part of Nature that appear in the classification of the Clifford algebras. The succeeding phase transitions radically simplify the basic mainstream theories via elimination of the approximations and free parameters. The classification of the Clifford algebras and the succeeding phase transitions prove that Nature on its lowest level is superluminal, classical and non-relativistic. Within the Scale-Symmetric Theory, theory of spinors, Clifford algebras and Lie algebra, we can show how the only inertial-masses/volumes lead to the Principle of Equivalence. It is the Higgs mechanism. On the other hand, the Principle of Equivalence and the confinement forced by the Mexican-hat mechanism lead to the scalar condensates composed of the Einstein-spacetime components. Unification of the 7 different interactions is possible only via the theory of succeeding phase transitions of the non-gravitating Higgs field and via the atom-like structure of baryons.