[baudrunner]

Obviously the rate of velocity that something is moving will have an enormous effect when at great velocities.

That's true. The difference is negligable until we pass the ninety percent of light speed mark when it starts to become truly significant. The effect is calculated to be a factor of seven when travelling at 99.9% light speed. In other words, a traveller taking off from earth travelling at that speed for a seven year round trip to and back from a point in space almost three and a half light years away as seen from our frame of reference will have actually aged only about one year overall.

Though many of the physical phenomena inferred by Relativity are indeed real physical changes, the interpretations of cause of these changes may be debatable.

The above example of travelling at 99% light speed is true for uniform motion at that speed, and this phenomenon is also observed in practical experience, where adjustments for time differential is necessary to a GPS satellite's internal clock to compensate for a) the weaker effect of gravity, and b) the high rate of uniform velocity of the satellite. These accommodations make possible even more accurate positioning of earth bound objects.

Understandably, acelleration must affect the ability of an object/particle to maintain conventional behaviour but any behavioural anomaly should then in any practical sense not be encountered at uniform velocity, which to the object/particle is merely another inertial frame of reference. Some other explanation is needed because obviously something is going on.