Re: Inflationary Theory ; I'm confused

From: jacob navia (jacob_at_jacob.remcomp.fr)
Date: 01/23/05 

Date: Mon, 24 Jan 2005 00:47:37 +0100

Thesis:

Space can't expand.

If space would be able to expand, it would be
bigger than it is, a contradiction. Into what would
space itself "expand"? Into more space.

The limit of the incredible is reached with a
theory that says that space expands faster than
light.

Imagine a light ray that goes from point A to
point B.

When the photon starts moving it can never
reach point B or "*any*" point in space
because even if it is traveling at 300 000
Km/sec, in one second much more than 300 000 Km
of space separates where the photon was, from
its actual place, one second later.

SPEED IS KM/SEC. If in one second more than 300 000 Km
"appear" (from nowhere) nothing at all in that
universe can move and the temperature of the
Universe is absolute zero.

Temperature of a gas is the mean speed of its
molecules. If the molecules do not move, the
gas is at absolute zero.

You can't reach point B from point A unless
you go faster than light, for *ANY* point A and B.

But what means that "space is expanding at
300 000 Km sec".

What is "a kilometer" ????

It is thousand times the distance of the stick in Paris, or
whatever definition you use.

IN ALL definitions will be a physical process that
needs movement. You take the Paris stick out of
the museum and measure a distance. Or you use some
interferometry to make a stick or whatever.

Any measurement supposes an *unchanging* measure yardstick.
And if space is expanding this yardsticks aren't
conceivable any more. After a while they all grow by a
variable amount!

This becomes even worst when you consider the argument that
space expansion doesn't occur within galaxies or other bound
objects.

Space would expand between objects but the size of the
objects would not change, diluting themselves
in an ever greater space.

The behavior of a yardstick would change if there is
a galaxy nearby or not.

Suppose a "yardstick" measuring the distance between
galaxy A and B. It would detect an expansion,
but if the galaxies were inside a galaxy cluster it
would not.

All this contradictions have a common base:

Space is expanding.

Space is not expanding. Light gets stretched
when it goes through "empty" space. Why ?

I do not know. I prefer knowing what I do not know
than supposing that "space is expanding" or
similar "solutions".

Astronomers have gotten carried away with this, and
I have read some "In the beginning was the big bang", etc
books with some amusement. The pope is happy, and
blesses BB as the confirmation of the bible's
creation story albeit with a physics touch now.

I remain a skeptic.

All the physical explanations sound "correct" but the
basic problem is untouched. How can space "expand" ???

I have a dent against Creation, Creators, big bangs that
started everything. We should at least acknowledge that
we haven't the foggiest idea what the "Universe" is.

For starters we can speak only about the "observed" universe.
this is the scientific side. Speaking about what lies beyond
the horizon is meta-physics (a very amusing activity)
but not science, not physics.

And there is *no way* to know what lies beyond the
horizon by definition.

Any being has an HORIZON, i.e. the measure of the farthest
point it can perceive.

Our horizon is expanding and the only thing that really expands,
is the observable Universe. Our scopes reach farther and
farther, and the poor big bang starts a race against it,
getting pushed farther and farther since the scopes reach
already 13.5 billion years and no bang is in sight.

The observations show similar galaxies, clusters, etc
as we see around us. No bang is in sight.

This was the news this year, when Chandra and all new
scopes start reaching the big bang:

No bang is in sight. We find galaxy clusters, huge black
holes, and old galaxies with a lot of iron in them.

Astronomy is not cosmology. Astronomy is about observations,
i.e. it can only assert what we know about the observed
Universe. What lies beyond is forever the realm of meta-physics.

And a theory could be brought for, that tries to explain how the
observed Universe evolved, (if we can find a common denominator for it)
but that will tell nothing about the universe but about the observed
one, the one that lies between our horizon and us.

Science can't go beyond the horizon. The basis of science are
observations, and the universe can't be observed. This is
an intrinsic limitation of any finite being.

And please, we *are* finite. Our life span is 100 years if we are
lucky, and our speeds never go beyond a few Km/Sec at most. We do not
have the foggiest idea what the universe is.

We didn't know the existence of planets in other stars
just a few years ago. We had never space scopes until
shortly.

Let's calm down, and start looking around, observing,
collecting data, trying to figure out what is out
there. And forget the universe. It will be
*always* beyond our reach.

Science can't offer any further explanation.

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