Re: Where did the extra mass come from?


"George" <George@xxxxxxxxxx> wrote in message
news:nXglk.3524$De7.1561@xxxxxxxxxxxxxxxxxxxxxxxxx

Umm, EErs? The silence is deafening.


Your minds are far too closed, considering we still live
in the Dark Ages.

Since less than 4% of the mass of the universe has been
identified, and the other 96% is still a /complete mystery/
(23% dark matter, 73% dark energy) I would say the
answer to plenty, if not all, of the basic questions of
the universe are yet to be answered.
http://wwwphy.princeton.edu/~steinh/osdark.pdf

I mean physics presents a theory called the big bang
yet completely fails to explain the cosmic coincidence
or fine tuning problems. Problems every bit as central
to that idea as the missing mass is in EE.

Prove the cosmic coincidence problem....isn't... a problem!
In doing so, you might discover why so many are
looking elsewhere for their answers.


"Whatever form the dark energy takes, two new cosmological
problems arise. First, the component must have a tiny energy
density today, roughly 10 -47 GeV4. How does this small
value arise from a microphysical theory? We will refer to the
puzzle of explaining this tiny energy as the fine-tuning problem."

"A second problem arises when the cosmological model
is extrapolated back in time to the very early universe, at
the end of ination, say. The quintessence energy density
decreases at a di erent rate than the matter density, and
the ratio shrinks by many orders of magnitude as we
extrapolate back in time. The observations are telling us
that, somehow, the ratio was set initially just right so that now,
fteen billion years later, the ratio is of order unity."

"Accounting for the special ratio in the early universe will be
referred to as the "coincidence problem" (Steinhardt 1997).
The coincidence problem is a generalization of the flatness
problem pointed out by Dicke and Peebles (Dicke & Peebles
1979). The fine-tuning and cosmic coincidence problems
are vexing. They are often posed as a paradox: Why should
the acceleration begin just as humans evolve? In desperation,
some cosmologists and physicists have been led to give
renewed attention to anthropic models (Weinberg 2000).
But many continue to seek a dynamical explanation which
does not require the fine-tuning of initial conditions or mass
parameters and which is decidedly nonanthropic."
http://wwwphy.princeton.edu/~steinh/steinhardt.pdf



Jonathan




George





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