[ExI] Problem with time travel WAS Faster than light??

[Mike Dougherty]

On Wed, Sep 28, 2011 at 4:03 PM, Jeff Davis <jrd1415 at gmail.com> wrote:
> I'm only just starting to think along these lines.  If anyone wants to
> jump in, have at it.  Even if only to tell me not to give up my day
> job.

I follow your visualization ( i think )

It seems obvious that in a 4d spacetime that there is no inherent
reason for any dimension to be perceived any particular way.  It's
even simpler to imagine an arbitrary plane (2d) subsection of a 3d
space.  The flatlanders experience their "northward" direction at a
right angle to the next adjacent cube-face's 'parallel world' version
of a 'northward' direction.  From our experience outside this 3d
space, we can see these cube faces as separate lower-dimensional
existences with some orientation or relationship to each other.  The
inhabitants of each plane, while being mathematical genius of simple
geometry have barely scratched the surface (sorry) of topological
thinking.  Edwin Abbot Abbot's "Flatlanders" does this concept much
more justice that I have space (and time!) to relate here (and now).

I also imagine the HereNow moment you describe as the only reality is
the center of the universe (or A universe).  There is no reason there
should be a "smooth" progression from one point to another.  Our
awareness of moment-to-moment might be recorded as a sequence of
odd-numbered coordinates, prime-numbered coordinates, or some
oscillation function with no discernible pattern at all.  The
perception of a history of moments may be contained in the HereNow
moment itself and any observance of a next moment already contains
some vector of the perception of history and future.  I imagine the
nodal point of a soundwave (for example) being instantaneously silent,
but actually being a unique combination of potentially hundreds of
individual waves that happen to be in-phase with each other.  Maybe
the next- moment has a signature of its being some consistency with a
particular carrier [wave] we experienced in the previous- moment.  If
I had any artistic ability, I imagine a picture would convey this idea
much better than the wrongness of words.

I'd like to continue this visualization into an example of a spacetime
foam, but I have to go to class.  If this thread is still alive next
time I check email, I'll continue.  :)