On this slide, we simply point out that translation of a body through space and its passage through time are related, according to relativity.
           Now "mass" is spatial.
           It does not exist in time.
           Only things which contain the unit of time can "exist in time."
           Otherwise, the thing only exists as such when the passage of time has been momentarily stopped -- usually by photon emission and the consequent carrying off of the time unit by the photon.
          Since every mass that has temperature -- and every mass does -- is continually absorbing and emitting photons, then the mass is continually grabbing a time tail (absorption) and losing it (emission) shortly thereafter.
          Masstime is what exists in time, not mass.
          And every mass particle is continually turning from mass to masstime to mass, etc.
          Indeed, it is the summation of the absorption and emission of virtual subquanta by a mass particle -- i.e., its "charge" -- that determines its rate of flow through "time."
          And the spherical spin of a mass particle couples the particle of mass to the spacetime vacuum;  that is, to the virtual particle flux.
           Passage through ordinary time is controlled by creation and annihilation of quanta, and these processes are controlled by substructure (subquantal) actions and interactions.

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