Block Universe - According to the Formalism X4 = ict Space-time is Timeless - (:unkn) unknown (QuantumDream, Inc., 2013)
According to the formalism d = v x t fourth dimension of space-time is spatial too. In formula X4 = ict symbol t represents numerical order of material change i.e. motion running in space. Flow of time is flow of numerical order of materal change that we measure with clocks. Fundamental unit of numerical order t0,t1,t2...tn of material change is a Planck time tp. Numerical order of material change tn-1 is "before" numerical order of material change tn equivalently as natural number n-1 is "before" natural number n. Flow of physical time is a flow of numerical order t0,t1,t2...tn of material change and runs in a timeles 4D space.
Keywords: AS Academies and learned societies (General); QC00 Physics (General)