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By referring to "all that can possibly matter to a traveler," I
was addressing *only* the question of whether we are subject to a
"speed limit." IMO it is highly misleading, the source of much
confusion, but still common to infer that relativity imposes a
speed limit on *us.* It does no such thing. If anything, it
teaches us to discard entirely the notion of "personal velocity."
We don't "travel" to a distant galaxy; it travels to us.
Relativity imposes a limit only on the speed that we can *infer*
for the galaxy based on *our measurements* of how far *it* moves
(relative to *our* measuring rods) in a given amount of time
(relative to *our* clocks.) It imposes no limits whatsoever on
how long it might take the galaxy to get here. [NB: I hope nobody
will needlessly confuse matters by raising the question of the
need for acceleration on the part of *somebody.* I acknowledge
this fact, but it is not relevant to the point I am trying to
make.]