"Robert J. Kolker" wrote:

Octafish wrote:


Wrong. However, possibly the majority of everthing in the universe
*is* moving away from us at superluminal velocities.

Wrong. You are making the Galilean error of assuming that velocities add.

You are making the special relativistic error (i.e., the universe is not
modeled by special relativity) that there is a unique definition of
velocity. Some (reasonable) definitions of cosmological velocity give
superluminal speeds. This doesn't violate the spirit of relativity since
these superluminal speeds cannot be used for information transfer.

Another possible stance is that there is no reasonable general
definition of distance and speed in general relativity, and therefore
this whole discussion is meaningless.

Regards,
George