🚀 go-pugleaf

> > > I'm looking for information on what specific 
> > > types of conditions would be necessary for a 
> > > second "big bang" to be triggered in the universe.

See Andrei Linde's "The Self-Reproducing Inflationary 
Universe" at:  http://physics.stanford.edu/linde/

!@#$%^&*()!@#$%^&*(!@#$%^&*(!@#$%^&*()!@#$%^&*(!

Brief Timeline of String and Inflationary Cosmology
http://www.sciam.com/

1915: Albert Einstein proposes the theory of general relativity, which
equates gravity to the curvature of space-time. 

1929: Edwin Hubble makes the first measurement leading to the
conclusion that the universe is expanding. 

1932: Richard Tolman works out the thermodynamics of an oscillating
cyclic universe. 

1949: Fred Hoyle coins the term "big bang." 

1965: Robert Dicke, James Peebles, P.G. Roll and D.T. Wilkinson provide
interpretation for the newly observed cosmic background radiation. 

1969: George Ellis, Stephen Hawking and Roger Penrose derive the
singularity theorems for the big bang, proving that general relativity must
break down. 

1981: Alan Guth proposes an early version of the inflationary universe. 

1982: Andre Linde, Andreas Albrecht and Paul Steinhardt put inflation on
firmer footing. 

1983: Andrei Linde proposes a model for a chaotic inflationary universe. 

1992: John Mather and George Smoot identify fluctuations in cosmic
background radiation with COBE satellite. 

1993: Gabriele Veneziano and Maurizio Gasperini introduce their "pre-big
bang" cosmology based on ideas in string theory. 

1996: Petr Horava and Ed Witten construct an 11-dimensional string theory.

1998: Saul Perlmutter and colleagues make supernovae observations
indicating that the expansion of the universe is accelerating. 

!@#$%^&*()!@#$%^&*(!@#$%^&*(!@#$%^&*()!@#$%^&*(!

A Recycled Universe
 Crashing branes and cosmic acceleration 
  may power an infinite cycle in
   which our universe is but a phase
    By JR Minkel and George Musser 
http://www.sciam.com/article.cfm?articleID=000C55B5-C29B-1CDA-B4A8809EC588EEDF&pageNumber=1&catID=4


!@#$%^&*()!@#$%^&*(!@#$%^&*(!@#$%^&*()!@#$%^&*(!

http://www.damtp.cam.ac.uk/user/gr/public/inf_lowden.html
If the density of the universe exceeds a certain threshold known as
the critical density, this gravitational attraction is strong enough
to stop and later reverse the expansion of the universe, causing it
eventually to recollapse in what is known as the "Big Crunch."
                        /.../
        For quite some time it has been known
        that the mean density of our universe
        agrees with the critical density to
        within better than a factor of ten.
        Even with such large margin of error
        this agreement is remarkable.
        Establishing initial conditions so
        that the mean density remains close
        to the critical density for more than
        a fleeting moment is much like trying
        to balance a pencil on its point.
        A universe initially with slightly
        subcritical density rapidly becomes
        increasingly subcritical and soon
        virtually indistinguishable from
        an empty universe. Similarly, an ever
        so slightly supercritical universe
        rapidly collapses into a Big Crunch,
        never reaching the old age of our
        universe---somewhere around twelve
        billion years. To obtain a universe
        like ours seems to require fine
        tuning of the initial density to
        agree with the critical density to
        an accuracy around one part in 10^60!
        [That's a "ten" with sixty zeros]
http://www.damtp.cam.ac.uk/user/gr/public/inf_lowden.html

Verily... A Ten with Sixty Zeros "chance" for
the initial density to "agree" with the critical
density, to inflate a life-nurturing universe
versus an empty universe, seems to suggest a
specific fine-tuning of the original conditions...
(a 1 in 10 to the power of 60 chance): Eternity
has nothing but Time to impliment such myriad
varieties. On the other hand, perhaps an advanced
technology from a previous successful universe
has found a way to perform these precise calculations
for fine tuning many universes for scientific
study and maybe even entertainment or motives
entirely incomprehensible to us clever primates?

Will we do likewise?

Brookhaven National Laboratory
http://www.bnl.gov/RHIC/

!@#$%^&*()!@#$%^&*(!@#$%^&*(!@#$%^&*()!@#$%^&*(!