"Ken S. Tucker" wrote:

Hello AI
In the following, arbituary units are
suppressed for clarity.

Special Relativity relies on two apparently
paradoxical postulates,

SR1) Velocity = x/t is relative.
(no absolute velocity)
(measuring velocity requires the relativity
of two references)

A measured velocity is absolute, ...
it's _value_ is relative.

There's no paradox there. This is
a common problem in all measurements.
Take the last presidential election
results for instance.


SR2) Velocity "c" is invariant.
(c is relativistically invariant)

c is a speed, not a velocity.
Big difference.