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Our cosmological horizon. 



 
 
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  #1  
Old June 23rd 14, 10:06 AM posted to sci.astro
Brad Guth[_3_]
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Posts: 15,175
Default Our cosmological horizon.

On Monday, June 23, 2014 12:46:37 AM UTC-7, Jeff-Relf.Me wrote:
*
Double·A, The start of the "Big Bang"
is just our cosmological horizon.

Like any horizon,
it's different for different observers,
depending on where/when you are.

The start of the big bang is notional,
subjective, -not- objective.

The edge, the horizon, is infintely redshifted;
so clocks there -appear- to not tick at all,
and measuring sticks -appear- to measure no length.

We call that a "sigularity",
but it's location, in time and space,
depends on where/when you measure it.

Locally, at the -apparent- singularity...
i.e. at the -apparent- start of the big bang..
i.e. at -our- horizon...
there's -no- redshift.

So, locally, clocks tick normally,
and measuring sticks measure lengths.

Quantum Mechanics tells us -nothing-
about what as going on there/then, I assure you.

There's nothing special about that place/time,
except that it, to us, and us only, is a horizon.

Dark Energy is just entropy, racheting up.
Cold Dark Matter is just unseen mass.

http://Jeff-Relf.Me/The_Cosmic_Horizon_.HTM
http://Jeff-Relf.Me/Einstein.HTM


Same exact analogy applies for all things fully blushifted.

Go figure, when the eventual cosmic collapse/implosion happens, we will never see it coming, because our local universe will have become the singularity that can not see outside of our very own event horizon. Even if a redshift velocity reduction is detected of the most distant galaxies, it'll be too late because of the 14 GY time delay.


  #2  
Old June 23rd 14, 02:25 PM posted to alt.astronomy,sci.physics,sci.astro
Jeff-Relf.Me
external usenet poster
 
Posts: 73
Default Our cosmological horizon. 

PRE Style='White-Space: PRE !important; Font-Size: 18px !important;Font-Family: monospace !important;'Â*
Double·A, The start of the "Big Bang"
is just our cosmological horizon.

Like any horizon,
it's different for different observers,
depending on where/when you are.

The start of the big bang is notional,
subjective, -not- objective.

The edge, the horizon, is infintely redshifted;
so clocks there -appear- to not tick at all,
and measuring sticks -appear- to measure no length.

We call that a "sigularity",
but it's location, in time and space,
depends on where/when you measure it.

Locally, at the -apparent- singularity...
i.e. at the -apparent- start of the big bang..
i.e. at -our- horizon...
there's -no- redshift.

So, locally, clocks tick normally,
and measuring sticks measure lengths.

Quantum Mechanics tells us -nothing-
about what as going on there/then, I assure you.

There's nothing special about that place/time,
except that it, to us, and us only, is a horizon.

Dark Energy is just entropy, racheting up.
Cold Dark Matter is just unseen mass.

http://Jeff-Relf.Me/The_Cosmic_Horizon_.HTM
http://Jeff-Relf.Me/Einstein.HTM
 




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