The Non-Expanding Universe
To get a handle on Mach’s viewpoint, imagine a particle spinning out in space. If there were no stars forming a backdrop against which to measure the particle’s motion, can we really say that the particle is moving? To Mach, the answer was no, in an empty space there is no distinction between the particle spinning and the particle being stationary.
via fqxi.org
Interesting POV on space-time continuum. It is not that I understand everything that universe has to offer - nevertheless, this is an interesting POV
