Space-Time Is Not Curved?
- From: "G. L. Bradford" <glbrad01@xxxxxxxxxxxxx>
- Date: Sun, 9 Jul 2006 07:00:17 -0400
I'm reading some things where it is mentioned that there increasing
agreement -- albeit unspecified -- that space is not curved by the matter in
it. That gravity does not curve space, meaning also that gravity and any
curvature of space are not indistinguishably one and the same thing. This is
probably right, but doesn't change what should be an acutely obvious picture
that [distance-space-time] in any line must and does curve. And, must curve
more and more the longer that line is. But, to go off in a tangent for a
second, that in no way means a circle back to any originating point. A
spring curves and curves, and curves, but never curves back to starting
point.
To get back on subject, continuous motion of all objects and events in the
Universe, everywhere in space-time, means that no observer at any distance
not indistinguishable from zero will be able to truly position objects
and/or events in any straight line out from any point of observation. First
of all, the object and/or event, or object event, will have moved --
traveled -- in space, and conditionally evolved in time, in the intervening
time it takes information of the object event to reach the observer.
Secondly, the observer and observation platform whatever it may be, the
observer's own frame, will also have moved -- traveled -- in space, and
conditionally evolved in time, in the same intervening time. All this
continuity of motion in more than one dimension, coupled to inevitable
information transmission lag time, inexorably curves the line of space-time
between there and here, wherever "there" is and wherever "here" is, so to
speak. And the longer the intervening time-line (the longer the information
transmission lag time), the more acute will grow the curvature.
There are at least two Universes. The real Universe and the
informational -- or observed -- universe. The informational universe seems
simple enough as to space-times lines when you are simply observing it. But
try to actually travel those lines of information to any destination, older
to newer to newest concerning the destination, you would find yourself
speeding up into worsening curves the longer that space-time line of
information was that you would be tracking along in the line, all due to the
fact that there is no such thing as "slow motion," much less "stop action,"
in the real Universe outside of relativity to some observer. Also outside of
two or more entities coming together to become a localized unit of some kind
in space-time, thus forming in the doing a localized self-contained bubble
or field, or frame, of the same overall space-time for all as 'one'
singularly identifiable higher level unit entity. These are the exceptions
to the rule, but only relatively speaking or specifically concerning that
specified level and localized frame. A galaxy is one such singular entity, a
unit whole, but go down one level of it into it, it's a different ballgame.
It isn't 'one' any longer. It is quanta dynamic. Thus curving informational
lines between all component units -- all of them being in constant motion.
If you HAD to travel those curved informational lines toward some real
point in space, to some destination, that's physical curvature you would
HAVE to physically adhere to. But if you could ignore those curved
informational lines and "lead" (as it is called) your destination in
space-time to its real location where it would be [when] you arrived in that
same space (relative to your own more or less real location when you start
out), and travel that line straight to that point, then you would be cutting
through curvatures rather than following them, effectively "wormholing"
space and time to your destination.
A star will [broad]cast its position to all points of space at all times.
But since it is motion in space at all times, and all other entities in
space are in motion at all, that information it broadcasts becomes
meaningless with regard to reality almost immediately. More meaningless the
greater the distance the particular broadcast travels (the star remaining in
constant motion traveling its line during every second of the broadcast
wave's travel out in an ever expanding wave front). Only a single point
along that wave line ever arrives to a single observer. Only single points
along each proceeding wave line ever arrives to a single observer. A line of
points forming a line perpendicular to the line of each wave, older
information on the observer's end of that line, newest information in that
line just departing the source now somewhere else in space-time than the
older information arrived to the distant observer informs that observer the
source to be. A traveler, though, traveling to that star via leading it,
will travel through many such lines of points, through many such oncoming
wave lines, wave fronts, perpendicular to those lines of points. Though the
traveler is cutting through all the informational lines and their curvatures
he will still striking informational points in a wholly different type of
line than any observer in any so-called inertial frame. From the information
he receives, in the way he receives it, the destination star would be
picking up speed across and through the star field along a line of sight on
its way to their rendevous point. The faster he proceeds toward that chosen
rendevous point, the faster the star appears (contrasting with the
background) to be proceeding, racing him toward that same rendevous point.
It is of course nothing but the informational universe that is involved with
his observations. Regarding the real Universe, the real star is already
acutely close to the chosen rendevous point in space, if not already there.
The traveler is doing nothing more nor less than traveling a line of older
information to ever newer -- though still old -- information broadcasts
faster than any observer in any distant inertial frame could ever get
information.
A central problem with the above scenario is that the traveler in
navigating to some rendevous point in space must already know that rendevous
point and navigate via coordinate points of a far more distant background
Universe rather than any foreground, just as a navigator at sea does not
navigate according to the sea and clouds around him but according to time
and according to the distant stars and star groupings of the sky over him
(his background Universe). That is (tongue in cheek), just as long as those
stars, any one of them that is, is never his destination (he would then have
to navigate according to a different background because that background used
on Earth to navigate by would [speedily] dissolve into ever changing chaos,
ever changing rearrangments of local star fields, he (as then a space
navigator) could not then use to navigate his way by).
Picking a rendevous point to navigate to wouldn't work beyond a certain
distance. The worsening informational line curvature would then be just too
great. Also the traveler's pick-up in velocity [with regard to cutting such
space-time curvature] would become just to hellish. He would run into a
growing conversion to material thickness to the galactic disk that didn't
exist for him in starting out (was nothing but seemingly empty space, but
empty no more (now more or less a space of galactic disk around him far too
materially crowded for any safe navigation anywhere through the disk [while
at his velocity]. Effectively "wormholing" space and time wouldn't be
working any more)). The traveler still has an option. Leave the galactic
disk in going perpendicular to it to get above or below it (in getting
hyperspatially relative to it), travel over or under it then drop back down
(or up) into it toward a chosen point within it.
That all the seeming empty space and all the matter, mass and energy
(including whatever of "dark") of a galaxy would gradually progress to
shrinking and solidifying into some quality like "wet cement" or "brick
wall" -- so to speak -- around a traveler traveling at ever increasing
speeds [through] a galactic disk seems never to have occurred to physicists,
cosmologists, or even sci-fi writers. The traveler's only option then is to
get out of it, reach out and up to a different, far more speed friendly,
level of space-time (go 'hyper'). Relative to that traveler, the galaxy is
no longer a hundred thousand light years in diameter, just as relative to an
astronaut in any orbital space above the Earth, or in any solar systemic
space outside the Earth, the Earth is no longer the fraction of a light
second in diameter it was before -- when he or she was sitting, standing, or
traveling [on] Earth. Every single dimension of Earth, and every single
thing of Earth, its whole frame as a whole unit, shrinks [spatially]
relative to him or her, with distance, including distance -- or increased
difference -- in velocity, from it. Relative to the Earth, the astronaut has
accelerated in an expansion of his own frame of space-time. His second isn't
any longer than it was when he was sitting, standing, or traveling upon the
Earth, its just that the Earth shrunk to the size of a very large, very
round, ball-shaped building nearby, relative to him and his frame of
space-time which never once changes in its dimensions for him whether he is
on Earth or off; or within the galaxy or outside of it. His straight lines
and curved lines has gone through no changes at all, but the curve line and
lines of a more distant Earth for him now have become hellishly curved
lines. Informational universe-wise the equivalent of adding to, or
multiplying, the [relative] distance -- therefore the information lag
time -- between him, or her, and Earth.
GLB
.
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