The Shalimar Treaty

[douglas]

Thermodyne said:
Also, Einstein’s limit on the maximum speed that mater can obtain, is based on the theory that mass increases with speed. This foundation of his work has yet to be demonstrated. So everything built upon it is still theory.

On the contrary, particle accelerators have pushed various subatomic particles to very near the speed of light with a resulting increase in mass sufficient to require designing new kinds of particle accelerators (at least of the circular variety) to take the mass increase into account before being able to achieve even higher speeds. The amount of the mass increase corresponded quite well with the predictions of relativity. For a little bit of reference material, go here.