How fast is too fast and how slow is too slow? Interestingly, the need for growth that applies to children also applies to our universe. But the rate
of growth for the latter deals with factors much more precise. Before the discovery of the Big Bang, back when
scientific opinion declared that the universe always existed, it was also
assumed that the same was held together in “perfect” balance. The fact of gravity did raise bits of concern
that one day these heavenly bodies known as stars would “notice” each other and
come to fall into each other (how romantic!). But Einstein’s
General Theory of Relativity brought an end to that notion of a stable and “static”
universe (by static is meant unchanging and unmoving). The new insights arising from relativity
demanded that our universe cannot be static.
It must be either be expanding or collapsing. Out of that insight alone French physicist
and clergyman, Georges Lemaitre hypothesized an expanding universe out of a “primeval
atom.” Scientific discoveries, which
soon followed, beginning with Edwin Hubble’s observations through the telescope
at Mount Wilson, added to the case that our universe has been (and continues
today) expanding out from an absolute beginning in the singularity of the Big
Bang. An entertaining and informational
survey of the whole story can be found in the book, Show Me God, v.II,
by Fred Heeren. (Daystar, 2000).
Only later did it become clear just how precise this
expansion rate had to be, when measured against the necessary requirements for a
universe that can host life of any kind.
The basic problem is, if the expansion rate had been too slow, all matter
would quickly have collapsed in on
itself into a gigantic black hole. In
that case there could be no galaxies, stars, and planets at all. On the other hand, had the expansion rate
been larger, all of that potential matter would have so quickly dissipated that
it could not gravitationally form into galaxies, stars, and planets either. While this basic theme should be fairly
clear, what is most astonishing is just how razor thin that allowable expansion
rate is which allows for the kind of universe in which it is possible for any
kind of life to exist. Stephen Hawking
put it this way:
“Why did the universe
start out with so nearly the critical rate of expansion that separates models
that recollapse from those that go on expanding forever, so that even now, ten
thousand million years later, it is still expanding at nearly the critical
rate? If the rate of expansion one
second after the big bang had been smaller by even one part in a hundred thousand million million, the universe would
have recollapsed before it ever reached its present state.” (A Brief History of Time.
(Bantam 1988), p.122,3).
The very rate of expansion
is therefore an additional indication of design in the very creation that
exists by the Word of God (Genesis 1:1,2, John 1:1-3, Hebrews ll:3) Truly, “The
Heavens declare the glory of the LORD and
the firmament proclaims His handiwork” (Psalm 19:1).