6-Dimensional Space-Time

The second Dimension of Time, Simultaneity, involves at least two distinct events, and, hence, requires at least two locations.  Thus, in it, the 3 Dimensions of Space and the 3 of Time intersect, thereby constituting a 6-Dimensional Space-Time, ingredient in both concrete Experience and the fundamental processes of Modern Physics, i. e. as has been previously discussed, all 3 of Time are ingredient in Measurement, perhaps its most fundamental operation.  However, it is unclear if the 6-D model has any use in Physics.  Regardless, it exposes the 4-D concept as more useful mathematical construct than description of an exotic aspect of reality, as it is sometimes presumed to be.