When you see a universe named after not one, not two but three dead
European scholastic physicists run not just walk.
Friedman was a Russian meteorologist who first suggested an expanding
universe with positive spatial curvature (k=+1) and non zero
cosmological constant. He derived the models “as a mathematical exercise
rather than a model of the real universe.” So Friedman’s contribution to
the FRW universe is that some term in the mathematical model may be +1.
What is Robertson’s contribution? Robertson summarizes his contribution
this way: “The idealized cosmological problem, in which the nebulae are
considered as particles in homogeneous flow, is analyzed from the
standpoint of the operational methodology, allowing the fundamental
observers the use only of clocks, theodolites and light signals.”
The general relativistic observers no longer are required to carry
theodolites with them now they use GPS, the theodolite is no longer a
sine qua non of a Robertson universe.
Robertson continues: “The increased knowledge of the structure,
distribution, and radial motion of extragalactic nebulae, which has been
amassed during the past decade, has brought about a renewed interest in
cosmological speculation.” Robertson sees cosmology as speculation.
And what mathematical model Robertson prefers to speculate about the
cosmos? He chooses the “least ad hoc” of these speculations which is
“that offshoot of Einstein’s relativistic theory of gravitation….”
Robertson calls General Relativity an ad hoc speculation (albeit, less
ad hoc than other speculations).
What is the purpose of this ad hoc speculation? “It seeks to develop
from the general theory of relativity an idealized universe suitable for
the gross description of the observed nebular phenomena.”
How does it do this? “This is accomplished with the aid of a general a
priori uniformity postulate” which is the cosmological principle.
Robertson says that he is studying “the problem of determining the most
general kinematical background suitable for an idealized universe in
which the cosmological principle holds.”
Therefore, the fundamental premise of the Robertson universe is that it
is based on the Cosmological Principle. But it has been shown that the
cosmological principle is an anthropocentric principle.
And what is the contribution of Walker? He writes: “Out of all possible
material systems, we know consider only those which satisfy the
cosmological principle.” So Walkerian universe is also based on the
Cosmological Principle.
Then, we have a definition for the FRW universe:
FRW universe is an ad hoc speculation based on an a priori
anthropocentric principle.
This is how the creators of the FRW define their universe. This is also
the definition of cosmology.
We note that the definition of what cosmologist studies contains the
words: ad hoc speculation, a priori, and anthropocentric.
It is clear that FRW universe is an anthropocentric truncation of the
universe, i.e. a cosmos. Therefore, contrary to what the cosmologist
claims, he does not study a physical entity but a cosmos that he
invented himself, he is the pre-scientific mythmaker.
This short visit to the archives makes several things about physics and
cosmology clearer: they are scholastic disciplines based on pre-scientific principles.
Note that just about 50 years ago physicists were so naïve and
frank about what they do. No physicist today would use the word
speculate about his work, he would use technical words like, toy model
and scenario, for instance.
Note also the perception of general relativity as what it really is, an ad
hoc speculation of some European petit bourgeois scholastic with
megalomaniacal tendencies. These physicists use it as mathematical
playground to do some mathematical exercise.
Again and again, we see that physicists are scholastics and they avail
themselves of all the traditional scholastic methods.
Scholastic physicists turned FRW universe into a substanceless form.
Just mentioning the label FRW along with the formal substanceless
equations associated with it combined with other buzzwords culled from
the literature will make a perfect cosmological paper. This was done as
a parody a few years ago, and no one noticed for a while that it was a
parody.
It seems that first time in the history of mankind, after Thales, after
the realization that a scientific knowledge as opposed to the
mythological knowledge, humans are going through such a dark period when
science is totally absent and scientific free thinking is absent.
Technology, and craft and art exist, but the free science as opposed to
the faith knowledge is crushed by cosmology, physics and technology.
Citizens do not care, because the primitive European society is based on
the model developed by the European peasant which places faith-based
authoritative bureaucracy at the center of weight of society and any
kind of freedom and free thinking is killed at first sight.