Posted: Aug 04, 2016 10:31 pm
by Thommo
I don't honestly understand your question.

Einstein had two theories, the special theory of relativity and the general theory of relativity. The special theory amounts to the postulate (subsequently experimentally confirmed) that the observed speed of light is the same in different inertial frames of reference and a lot of rather clever corollaries of that proposition.

The general theory amounts to (in exceptionally reductionist terms) the idea that space tells mass how to curve and mass tell space how to curve. That the "straight lines" of Galilean relativity are actually geodesics in a much more complicated space. The corollaries of that are even more clever and even more complex.

I have absolutely no idea how that would relate to a "slowing down of observation" or what that even means, sorry.