Authors comments following this note
from a reader of the site: hi sam... just read your posting of smolin's work.
i recently read his latest "three roads to quantum gravity"
and dropped him an e-mail. i know he's a busy guy.
its imperative that you look at bucky fuller if
you haven't. the common rhombic dodecahedron
has the exact toplogy of a 4-cube and is
an all-space filler (no interstitial vacancies),
and is apparently the most common crystallographic
lattice in nature. its dual-reciprocal negative-space
complement is the cubeoctahedron ( your observer perspective)
which is stunning. do you know about it?
best
jonathan Authors Comments: This note is very perceptive, and points out the very important
relationship in geometry between circles and spheres (as in GR and Schwarzschilds
Two Sphere) and "flat sided" Euclidean
figures and objects in 2,3 and 4 dimensions (as in SRT and Euclidean
Geometry).Without going into the exact derivations of formulae for 3D
objects (of all shapes) from formulae for 2D figures (of all shapes), the studied
reader will remember that Euclidean and Spherical Geometry are conceptually
linked. Some important linking concepts are straight vs curved lines
and their nomenclature, global as opposed to local,
coordinates, angles and observing frames. Continuing, we need to recognize and understand what happens when
a higher dimensional object is projected onto a lower dimensional surface
to understand this world of ours. To use one simple illustration, (and bypass
many other important principles), a 3D cone projected onto a two dimensional
surface can be observed in two ways, but only one way at the same time.
Likewise, a universe in extra large dimensions, as the
Schwarzschild two/ sphere when projected and observed on 4D surfaces, can
also be observed in two ways, but only one way at a time. Speaking in terms of
degrees, when we observe a 7 dimensional, two/ sphere universe at 360 degrees, we only
observe 1/2 of the entire reality. Walk around a friend and observe them
front and back...from every possible direction at 360 degrees.
You are only seeing one half of your friend. The other half is "on the
other side". Just as you cannot see landmasses over the horizon of the
Earth, this other half of your friend is just as real, just as massive, just as particulate and just
as observable;
but not from our present coordinates.
The way nature is organized reflects the basic principles of its construction,
both at the local, 4D SRT, flat, Euclidean level and at the macroscopic 7D GR,
Two/ Sphere level. Everything is linked and related. This fact makes the above post and the observations
noted therein, highly significant. Best Wishes, Sam Cox
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