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From: Osher Doctorow on 18 Jul 2010 01:01
From Osher Doctorow

Wikipedia's online "Einstein Aether Theory" is fascinating among other
reasons because it refers to that theory as "controversial" apparently
simply because it has not (yet) been accepted as the main theory of
the inflaton and requires some special conditions, one of which is
"additional" to those of the usual theories.

The proponents of that theory alone should tend to lend credence to
the theory, especially since they are in Astrophysics, a field or
discipline which is almost totally "uncorrupted" by departmental
bureaucracies vying for funds for "important research" - since
Astrophysics and Cosmology are arguably typically regarded by
Bureaucrats as providing no immediate profits or lucrative personal
gains. This is an interesting clue for researchers - what the Public
tends to regard as useless in present times is arguably the most
useful.

The paper that I refer to in the title is by William Donnelly and Ted
Jacobson of U. Maryland USA, 13 pages, 2 columns per page, arXiv:
1007.2594 v1 [gr-qc] 15 Jul 2010. Other proponents of Einstein
Aether Theory are the famous Nima Arkani-Hamid, Howard Georgi, David
Mattingly (U. C. Davis), Christopher Eling (U. Maryland), Hsin-Chia
Cheng, Markis Luty, Jesse Thaler.

I will try to discuss Donnelly's and Jacobson's paper later, but here
I will point out two relationships that relate to Causation or
Causality (see the Wikipedia paper above):

1) x chronologically precedes y if y - x is future directed (1st
component positive) timelike, roughly speaking "pointing toward future
time".

2) x causally precedes y if y - x is future directed null, that is to
say is null (lightlike) with first component positive (roughly
speaking "pointing toward future light").

The preoccupation with light mostly has to do with Einstein's
preoccupation with light in GR and SR; in Probable Causation/influence
(PI), (1) would very roughly be preferred to (2) in terms of
Causation, although with some additional conditions.

Osher Doctorow
From: Osher Doctorow on 18 Jul 2010 01:09
From Osher Doctorow

Nima Arkani-Hamed (not Hamid) is with the Princeton Institute for
Advanced Study, New Jersey USA.

Osher Doctorow
From: Osher Doctorow on 18 Jul 2010 01:13
From Osher Doctorow

Howard Georgi of Harvard University USA won the Dirac Medal in 2000
and several other major awards, and among other things developed the
theory of "unparticles".

Osher Doctorow
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