It seems a shame to destroy all of the confusion that has existed so long in the field of physics, but we are forced to replace the outmoded and erroneous relativity principle with a much simpler concept presently being termed the mass-space principle. The article describing the principle has been accepted for publication by the editor of Galilean Electrodynamics published in Boulder, Colorado. The concept requires that space exists only by virtue of the mass which determines it. The energy in the space of an object is tensional in nature and is equal to the internal energy of the object itself. It follows that there exists no background of space separate from the matter which establishes it.
Analogy often serves as a valid teaching aid.
In the present instance there exists a certain analogy with the material atmosphere. The limitation of the Mach number in the atmosphere is well-known. At one time the experts were giving solemn assurances to the effect that no aircraft would ever exceed the velocity of sound in the atmosphere because the drag rise was so extreme as the velocity of sound was approached that the plane would be destroyed. Somehow that sounds very similar to the present concept that no material object will ever exceed the velocity of light in space. The supposed limitation is nothing short of ridiculous.