The Construction of 4-Dimensional Space-Time

In the actual world, Velocity is a ratio of the displacement of an object in motion to the displacement of a part of a measuring device.  In both cases, the displacement is linear.  Hence, Velocity consists in two Spatial dimensions, i. e. lines, but not as combined, i. e. not as combined in the way that length and width are.  Now, the points that are the termini of the motion can each be characterized by three coordinates, e. g. in a vehicle moving down a street, in relation to the top of a nearby tree and the ground, to the sidewalks on either side of the street, and to the beginning and end of the block that it is on.  Furthermore, to each 3-tuple can be affixed a fourth coordinate, the corresponding terminus of the linear displacement in the measuring device, and called 'time'. The result is the 4-Dimensional Space-Time representation of what, in the actual world, is a heterogeneously 2-Dimensional event.  Even if the representation proves useful for elaborate predictive purposes, it does not replace actuality, contrary to what many Physicists seem to believe.