## Abstract

For Newton, spacetime was always existing on its own, exactly the same for all observers and provided a passive stage for all physical events to unfold. For Einstein, spacetime was relative to observers and also an *active* player in physical phenomena, influencing motions of material bodies and getting modified due to their presence. Einstein’s spacetime concept emerged from two requirements: one, all equations of physics had to be *same* mathematically for all the observers and second, any convention for synchronization of space and times required finite (and constant in all directions in empty spacetime for all observers) speed of light. Einstein however tacitly assumed that all observers experience spacetimes that are *always* *synchronizable*. While we keep the ‘relativity’ and ‘active’ part of the spacetime ontology from Einstein’s, we propose extension of concept of spacetime by considering two observers experiencing two spacetimes that cannot synchronize[1] with each other due to impossibility of transfer of any information between them. Though these two spacetimes follow *same classical relativistic *physical laws within themselves and for any observer embedded inside them, there is no predictive spacetime transformation equations between the two and there are only probability distribution functions connecting values of coordinates of space and time as measured by two observers belonging to these two spacetimes. Effects of desynchronization are discussed and it is postulated that many intriguing aspects of Quantum Physics can be ascribed to phenomenon of desynchronization between spacetime of observer and spacetime of system under study. It is shown that Schrodinger’s equation is the result of space desynchronization and is non-relativistic and asymmetric in its treatment of space and time because it does not model time desynchronization. This leads to failure of Schrodinger’s equation to model anti-particles and annihilation and production of particles, as these phenomena require time desynchronization. Inclusion of time desynchronization leads to Quantum Field Theory that is symmetric in its treatment of space and time and is relativistic. Desynchronization aspects of quantum system’s spacetime vis-à-vis observer’s spacetime also leads to resolution of non-*identity of indiscernible *effects in Quantum Physics explaining in its wake fundamental difference in quantum statistics and classical statistics. Ontological explanation of existence of dynamic symmetry (in addition to geometric symmetries of classical physics) for quantum systems give us confidence that desynchronization aspect of Quantum Physics is a vital part of *missing *ontological treatment of the same. Existence of synchronization within the quantum system’s spacetime and its desynchronization with spacetime of observer explains Quantum Entanglement and in this sense it is manifestation of Mach’s principle of classical physics in quantum realm. On the basis of postulate of desynchronization, *nested desynchronized universes* model, christened MASK model, of our Universe is proposed. de Broglie & Bohm mechanics of Quantum Trajectories with Quantum potential is discussed in view of our postulate of desynchronization. An explanation of how desynchronization can obviate the need for super-luminous speeds for *internal* vibrations/waves is forwarded, thereby removing the basic difficulty in modeling elementary particles as extended systems and not *point-like*. Extension of model to elementary particles then explains why these may be modeled as representations of Lie groups. Towards the end, effects of synchronization between all parts of a spacetime in classical physics are discussed in an attempt to achieve a heuristic explanation of existence of principle of least action. The study is extended to include the attempt at geometrizing the definitions of mass, spin, charge, angular momentum and other quantum numbers that Standard Model of Elementary particles assigns to these. Requirement of renormalization shall be seen to be obviated from quantum field theories with the help of desynchronization principle.

We begin with Introduction now.

[1] *Synchronize* and *Desynchronize* words are misnomers as they hint only at *time *aspect (*chrono – time)* but for want of better words, these would be used for time as well as space aspects of a spacetime. Absence of an equivalent word for *space* means that we have had no occasion in the past to imagine the concept of *desynchronization of space!*