How the Universe Ends

4 Replies, 568 Views

How the Universe Ends

Ryan F. Mandelbaum, Gizmodo
October 22, 2018

Quote:Somewhere between a second and a millennium from now, you will die. Your body and all of its parts will cease functioning and rejoin the Earth as regular, lifeless stuff. The Earth, too, will die, engulfed by an expanding, aging Sun. The Sun will burn off all of its fuel and end up a white dwarf, then burn out and die. The Milky Way will collide with nearby Andromeda, and form a large, elliptical galaxy, which will die by losing all of its stars to intergalactic space. The corpses of those remaining stars will die, decaying into their constituent parts. The universe will age onward until all matter is either stored in black holes or floating as free elementary particles. Those black holes will evaporate, and the universe will die. All that was will be an icy cold nothing, forever.  (...)

But not every possible cosmic conclusion is one of utter desolation and emptiness. Maybe in some distant, post-heat-death future, the energy in the universe’s vacuum could spontaneously jump back upward at a point, initiating inflation at that point in space from which entirely new universes form, Alan Guth, MIT physicist who invented the theory of cosmic inflation, told Gizmodo. Perhaps that’s how our universe formed, and perhaps there are an infinite number of universes forming in the same way, decaying out of an infinitely inflating grander universe. Maybe there are places beyond the reach of our own universe that won’t be impacted by the demise of our own.
(This post was last modified: 2018-10-24, 02:43 AM by Ninshub.)
[-] The following 3 users Like Ninshub's post:
  • tim, Valmar, Brian
2 Peter 3:10

"But the day of the Lord will come like a thief. The heavens will disappear with a roar; the elements will be destroyed by fire, and the earth and everything done in it will be laid bare."

2 Peter 3.13

"But in keeping with his promise we are looking forward to a new heaven and a new earth, where righteousness dwells."
I like these parts 
Quote:The truth is, the universe far predates humans, it will far outlast humans, and contemplating its death is a depressing effort that highlights our incredible insignificance.

Regardless, humanity’s existence and legacy—and everything else, ever—will cease to exist or have meaning.
(2018-10-24, 12:16 PM)Steve001 Wrote: I like these parts 

Care to expand?
[-] The following 1 user Likes Silence's post:
  • Valmar
(2018-10-24, 02:42 AM)Ninshub Wrote: How the Universe Ends

Ryan F. Mandelbaum, Gizmodo
October 22, 2018
Science makes predictable outcomes from computation using logic and the known patterns of nature (laws that are the narrative about what physics equations may mean).

If you have a complex problem and equations to compute possible outcomes, the answers are only as good as the measured variables which model the process.  In other words - if you don't have all of the factors effecting the process - your answer is not reliable.

Quote:  They theorize that some energy (?) seemingly innate to the vacuum of the universe, called dark energy, powers the accelerated expansion. 

F(orce) = M(ass) times A(cceleration)  The scientist have an empirical measurement for the variable A and and reasonable estimates of mass in a defined area.  So, a theoretical amount of force can be calculated.  This huge, huge force is unidentified, so any further computational outcomes have little meaning.

The force is "located" in the vacuum of all space.  That means it is a force from "nothing", and could be not much more than quantum uncertainty.  The Casimir effect, an empirically measured force, works only on very short distances and has been connect to ZPE.  The ZPE could be small or it could be huge (Wheeler and Feynman).

I wouldn't go all "being and nothingness" with the sigma value related to these computations, it is a very low number expressing their reliability.  

Quote:"If you are lonely when you are alone, you are in bad company." - Sartre

  
(This post was last modified: 2018-10-24, 03:09 PM by stephenw.)
[-] The following 1 user Likes stephenw's post:
  • Ninshub

  • View a Printable Version
Forum Jump:


Users browsing this thread: 1 Guest(s)