One would assume that to move apart, things must move at different rates.
Hi Zed. Your query is similar to one Bucky Fuller addresses in two places in his book Synergetics 1 and 2, of which I dont have those paragraphis in front of me, to present.
However, long before Dark Energy phenomena ---accelerating expansion speed--- was discovered { 90's }, the classical way to visualize expanding Universe, every where, was to visualize a 2D surface of an expanding balloon with little dots on its surface as galaxies.
Then along came the visualization of a loaf of raisin bread expanding in 3D directions, wherein, the raisins represent the galaxies.
So, with Dark Energy { cosmic constant acceleration }, the loaf of raisin bread is expanding rates of acceleration.
..."
780.23 This
expanding-Universe concept is easy to phrase
in words as reported, but
lucid comprehension of its import involves experientially
"impossible," three-dimensional,
space-motion conceptionalizing, for in order to travel
away cosmically from each of all the
spherically surrounding galaxies of our Milky Way, any
one of the billions of galaxies
seemingly would have to go outwardly in all directions
in order to go away from each of
them simultaneously. Obviously, however, this could
not be accomplished by any one of
them moving in only one direction__which is humanity's
way of thinking of
motion-unless
there were a center of galaxy of Universe outwardly
from which all others move
exactly and only radially,
or unless all of Universe and all
of the galaxies and each and all
phenomena within them, including the smallest nuclear
particle, are either
expanding systematically and simultaneously or are
shrinking systematically
and simultaneously, all
changing in size at a rate that is just a bit faster
than the speed of light, with either the
universal contraction or universal expansion of all
points in Universe producing the same
effect of uniform withdrawal from one another.
780.24 This may be the universal effect of the
speed of gravity,
whose force
(possibly in order to eternally cohere Universe) is,
as is often found experimentally, always
just a fraction greater than the cosmic speed of inherently
disintegrative radiation. (See
Sec.
231.)
This conceptioning becomes lucid if one is
familiar with the vector equilibria
and their identity with isotropism, which spontaneously
accommodates coexpansion or
contraction independent of any Universe center, every
nuclear point within the system
being a Universe center, with all its 12 most immediate
neighbors always being equidistant
and bearing at the same total of central-angle magnitudes
from one another,1 with the
circumferentially closed, embracing vector forces always
more effective than their equal
and opposite radial vectors' noncooperative, open-ended,
disintegrative forces. ".....
Hope that helps Zed. The PBS Spacetime program has many great explanations and questions. This one really caught my attention becuase of my numerical patterning explorations of four levlels/lines, that, I inside-outed, and then inferred those lines are great circles, involved with a dynamic spiral helix trajectory, that, has two invaginations, at each maximum peak of curvature.
outer positve peak invagination (> <) inner negative peak invagination
Horizontal bisectional { cross-sectional } view of a the torus under consideration........space(> <)(> <)space............
inside the tube is two of the four lines/great circles that define two peaks of a sine-wave /\/\/\/\/ pattern....space( /\/\/ )( /\/\/ )space...........
The two inside lines ...as the two peaks of the sine-wave....., are associated with self-stabilizing { triangulated } set of numbers. 0, 3, 6, 9, 12, 15, 18 { 18 kinds of quark and 18 kinds of anti-quark }.
Sine-wave patterning inside the torus tube is associated with sine-wave patterns found with fermions { ex electrons /\/\/ } and bosons { ex photons /\/\/ } and again, they are the resultants of outer and inner invaginations { inversion-outversion } events.
