The Genesis Problem - Revision history

Mxmsj: Text replacement - "â€œ" to "“"

2022-12-10T09:21:28Z

Text replacement - "â€œ" to "“"

← Older revision		Revision as of 11:21, 10 December 2022
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	:* '''Eternal inflation''': Built on Alan Guth’s 1981 inflation proposal, this model imagines bubble universes forming and inflating spontaneously forever. Vilenkin and Guth had debunked this idea as recently as 2003. The equations still require a boundary in the past.		:* '''Eternal inflation''': Built on Alan Guth’s 1981 inflation proposal, this model imagines bubble universes forming and inflating spontaneously forever. Vilenkin and Guth had debunked this idea as recently as 2003. The equations still require a boundary in the past.
	:* '''Eternal cycles''': A universe that bounces endlessly from expansion to contraction has a certain appeal to some, but it won’t work either. ~~â€œDisorder~~ increases with time,” Grossman explained. ~~â€œSo~~ following each cycle, the universe must get more and more disordered.” Logically, then, if there had already been an infinite number of cycles, the universe would already been in a state of maximum disorder, even if the universe gets bigger with each bounce. Scratch that model.		:* '''Eternal cycles''': A universe that bounces endlessly from expansion to contraction has a certain appeal to some, but it won’t work either. “Disorder increases with time,” Grossman explained. “So following each cycle, the universe must get more and more disordered.” Logically, then, if there had already been an infinite number of cycles, the universe would already been in a state of maximum disorder, even if the universe gets bigger with each bounce. Scratch that model.
	:* '''Eternal egg''': One last holdout was the ~~â€œcosmic~~ egg” model that has the universe hatching out of some eternally-existing static state. ~~â€œLate~~ last year Vilenkin and graduate student Audrey Mithani showed that the egg could not have existed forever after all, as quantum instabilities would force it to collapse after a finite amount of time (arxiv.org/abs/1110.4096).” No way could the egg be eternal.		:* '''Eternal egg''': One last holdout was the “cosmic egg” model that has the universe hatching out of some eternally-existing static state. “Late last year Vilenkin and graduate student Audrey Mithani showed that the egg could not have existed forever after all, as quantum instabilities would force it to collapse after a finite amount of time (arxiv.org/abs/1110.4096).” No way could the egg be eternal.

	: The upshot of this is clear. No model of an eternal universe works. Vilenkin concluded, ~~â€œAll~~ the evidence we have says that the universe had a beginning.” An editorial at ''New Scientist'' called this, ~~â€œThe~~ Genesis Problem.”		: The upshot of this is clear. No model of an eternal universe works. Vilenkin concluded, “All the evidence we have says that the universe had a beginning.” An editorial at ''New Scientist'' called this, “The Genesis Problem.”

	[[Category:Cosmology]]		[[Category:Cosmology]]

Mxmsj: Text replacement - "â€™" to "’"

2022-12-10T09:21:26Z

Text replacement - "â€™" to "’"

← Older revision		Revision as of 11:21, 10 December 2022
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	; [http://crev.info/2012/01/cosmologists-forced-to-in-the-beginning/ "Cosmologists Forced to 'In the Beginning'":]		; [http://crev.info/2012/01/cosmologists-forced-to-in-the-beginning/ "Cosmologists Forced to 'In the Beginning'":]

	: Here are the models in brief and why they ~~donâ€™t~~ work:		: Here are the models in brief and why they don’t work:

	:* '''Eternal inflation''': Built on Alan ~~Guthâ€™s~~ 1981 inflation proposal, this model imagines bubble universes forming and inflating spontaneously forever. Vilenkin and Guth had debunked this idea as recently as 2003. The equations still require a boundary in the past.		:* '''Eternal inflation''': Built on Alan Guth’s 1981 inflation proposal, this model imagines bubble universes forming and inflating spontaneously forever. Vilenkin and Guth had debunked this idea as recently as 2003. The equations still require a boundary in the past.
	:* '''Eternal cycles''': A universe that bounces endlessly from expansion to contraction has a certain appeal to some, but it ~~wonâ€™t~~ work either. â€œDisorder increases with time,” Grossman explained. â€œSo following each cycle, the universe must get more and more disordered.” Logically, then, if there had already been an infinite number of cycles, the universe would already been in a state of maximum disorder, even if the universe gets bigger with each bounce. Scratch that model.		:* '''Eternal cycles''': A universe that bounces endlessly from expansion to contraction has a certain appeal to some, but it won’t work either. â€œDisorder increases with time,” Grossman explained. â€œSo following each cycle, the universe must get more and more disordered.” Logically, then, if there had already been an infinite number of cycles, the universe would already been in a state of maximum disorder, even if the universe gets bigger with each bounce. Scratch that model.
	:* '''Eternal egg''': One last holdout was the â€œcosmic egg” model that has the universe hatching out of some eternally-existing static state. â€œLate last year Vilenkin and graduate student Audrey Mithani showed that the egg could not have existed forever after all, as quantum instabilities would force it to collapse after a finite amount of time (arxiv.org/abs/1110.4096).” No way could the egg be eternal.		:* '''Eternal egg''': One last holdout was the â€œcosmic egg” model that has the universe hatching out of some eternally-existing static state. â€œLate last year Vilenkin and graduate student Audrey Mithani showed that the egg could not have existed forever after all, as quantum instabilities would force it to collapse after a finite amount of time (arxiv.org/abs/1110.4096).” No way could the egg be eternal.

Mxmsj: Text replacement - "â€" to "”"

2022-12-10T09:21:14Z

Text replacement - "â€" to "”"

← Older revision		Revision as of 11:21, 10 December 2022
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	:* '''Eternal inflation''': Built on Alan Guthâ€™s 1981 inflation proposal, this model imagines bubble universes forming and inflating spontaneously forever. Vilenkin and Guth had debunked this idea as recently as 2003. The equations still require a boundary in the past.		:* '''Eternal inflation''': Built on Alan Guthâ€™s 1981 inflation proposal, this model imagines bubble universes forming and inflating spontaneously forever. Vilenkin and Guth had debunked this idea as recently as 2003. The equations still require a boundary in the past.
	:* '''Eternal cycles''': A universe that bounces endlessly from expansion to contraction has a certain appeal to some, but it wonâ€™t work either. â€œDisorder increases with time,~~â€~~ Grossman explained. â€œSo following each cycle, the universe must get more and more disordered.~~â€~~ Logically, then, if there had already been an infinite number of cycles, the universe would already been in a state of maximum disorder, even if the universe gets bigger with each bounce. Scratch that model.		:* '''Eternal cycles''': A universe that bounces endlessly from expansion to contraction has a certain appeal to some, but it wonâ€™t work either. â€œDisorder increases with time,” Grossman explained. â€œSo following each cycle, the universe must get more and more disordered.” Logically, then, if there had already been an infinite number of cycles, the universe would already been in a state of maximum disorder, even if the universe gets bigger with each bounce. Scratch that model.
	:* '''Eternal egg''': One last holdout was the â€œcosmic ~~eggâ€~~ model that has the universe hatching out of some eternally-existing static state. â€œLate last year Vilenkin and graduate student Audrey Mithani showed that the egg could not have existed forever after all, as quantum instabilities would force it to collapse after a finite amount of time (arxiv.org/abs/1110.4096).~~â€~~ No way could the egg be eternal.		:* '''Eternal egg''': One last holdout was the â€œcosmic egg” model that has the universe hatching out of some eternally-existing static state. â€œLate last year Vilenkin and graduate student Audrey Mithani showed that the egg could not have existed forever after all, as quantum instabilities would force it to collapse after a finite amount of time (arxiv.org/abs/1110.4096).” No way could the egg be eternal.

	: The upshot of this is clear. No model of an eternal universe works. Vilenkin concluded, â€œAll the evidence we have says that the universe had a beginning.~~â€~~ An editorial at ''New Scientist'' called this, â€œThe Genesis Problem.~~â€~~		: The upshot of this is clear. No model of an eternal universe works. Vilenkin concluded, â€œAll the evidence we have says that the universe had a beginning.” An editorial at ''New Scientist'' called this, â€œThe Genesis Problem.”

	[[Category:Cosmology]]		[[Category:Cosmology]]

Mxmsj at 20:12, 22 March 2014

2014-03-22T20:12:10Z

← Older revision		Revision as of 22:12, 22 March 2014
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	; [http://crev.info/2012/01/cosmologists-forced-to-in-the-beginning/ "Cosmologists Forced to 'In the Beginning'":]		; [http://crev.info/2012/01/cosmologists-forced-to-in-the-beginning/ "Cosmologists Forced to 'In the Beginning'":]

	: "Here are the models in brief and why they donâ€™t work:		: Here are the models in brief and why they donâ€™t work:

	:* '''Eternal inflation''': Built on Alan Guthâ€™s 1981 inflation proposal, this model imagines bubble universes forming and inflating spontaneously forever. Vilenkin and Guth had debunked this idea as recently as 2003. The equations still require a boundary in the past.		:* '''Eternal inflation''': Built on Alan Guthâ€™s 1981 inflation proposal, this model imagines bubble universes forming and inflating spontaneously forever. Vilenkin and Guth had debunked this idea as recently as 2003. The equations still require a boundary in the past.
Line 9:		Line 9:
	:* '''Eternal egg''': One last holdout was the â€œcosmic eggâ€ model that has the universe hatching out of some eternally-existing static state. â€œLate last year Vilenkin and graduate student Audrey Mithani showed that the egg could not have existed forever after all, as quantum instabilities would force it to collapse after a finite amount of time (arxiv.org/abs/1110.4096).â€ No way could the egg be eternal.		:* '''Eternal egg''': One last holdout was the â€œcosmic eggâ€ model that has the universe hatching out of some eternally-existing static state. â€œLate last year Vilenkin and graduate student Audrey Mithani showed that the egg could not have existed forever after all, as quantum instabilities would force it to collapse after a finite amount of time (arxiv.org/abs/1110.4096).â€ No way could the egg be eternal.

	: The upshot of this is clear. No model of an eternal universe works. Vilenkin concluded, â€œAll the evidence we have says that the universe had a beginning.â€ An editorial at ''New Scientist'' called this, â€œThe Genesis Problem.â€"		: The upshot of this is clear. No model of an eternal universe works. Vilenkin concluded, â€œAll the evidence we have says that the universe had a beginning.â€ An editorial at ''New Scientist'' called this, â€œThe Genesis Problem.â€

	[[Category:Cosmology]]		[[Category:Cosmology]]

Mxmsj at 20:11, 22 March 2014

2014-03-22T20:11:20Z

← Older revision		Revision as of 22:11, 22 March 2014
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	[http://www.thesacredpage.com/2012/01/hawkings-bummer-birthday-no-eternal.html "Hawkings Bummer Birthday: No Eternal Universe."]		[http://www.thesacredpage.com/2012/01/hawkings-bummer-birthday-no-eternal.html "Hawkings Bummer Birthday: No Eternal Universe."]

	~~Quotes~~ [http://crev.info/2012/01/cosmologists-forced-to-in-the-beginning/ "Cosmologists Forced to 'In the Beginning'":]		; [http://crev.info/2012/01/cosmologists-forced-to-in-the-beginning/ "Cosmologists Forced to 'In the Beginning'":]

	"Here are the models in brief and why they donâ€™t work:		: "Here are the models in brief and why they donâ€™t work:

	* '''Eternal inflation''': Built on Alan Guthâ€™s 1981 inflation proposal, this model imagines bubble universes forming and inflating spontaneously forever. Vilenkin and Guth had debunked this idea as recently as 2003. The equations still require a boundary in the past.		:* '''Eternal inflation''': Built on Alan Guthâ€™s 1981 inflation proposal, this model imagines bubble universes forming and inflating spontaneously forever. Vilenkin and Guth had debunked this idea as recently as 2003. The equations still require a boundary in the past.
	* '''Eternal cycles''': A universe that bounces endlessly from expansion to contraction has a certain appeal to some, but it wonâ€™t work either. â€œDisorder increases with time,â€ Grossman explained. â€œSo following each cycle, the universe must get more and more disordered.â€ Logically, then, if there had already been an infinite number of cycles, the universe would already been in a state of maximum disorder, even if the universe gets bigger with each bounce. Scratch that model.		:* '''Eternal cycles''': A universe that bounces endlessly from expansion to contraction has a certain appeal to some, but it wonâ€™t work either. â€œDisorder increases with time,â€ Grossman explained. â€œSo following each cycle, the universe must get more and more disordered.â€ Logically, then, if there had already been an infinite number of cycles, the universe would already been in a state of maximum disorder, even if the universe gets bigger with each bounce. Scratch that model.
	* '''Eternal egg''': One last holdout was the â€œcosmic eggâ€ model that has the universe hatching out of some eternally-existing static state. â€œLate last year Vilenkin and graduate student Audrey Mithani showed that the egg could not have existed forever after all, as quantum instabilities would force it to collapse after a finite amount of time (arxiv.org/abs/1110.4096).â€ No way could the egg be eternal.		:* '''Eternal egg''': One last holdout was the â€œcosmic eggâ€ model that has the universe hatching out of some eternally-existing static state. â€œLate last year Vilenkin and graduate student Audrey Mithani showed that the egg could not have existed forever after all, as quantum instabilities would force it to collapse after a finite amount of time (arxiv.org/abs/1110.4096).â€ No way could the egg be eternal.

	The upshot of this is clear. No model of an eternal universe works. Vilenkin concluded, â€œAll the evidence we have says that the universe had a beginning.â€ An editorial at New Scientist called this, â€œThe Genesis Problem.â€"		: The upshot of this is clear. No model of an eternal universe works. Vilenkin concluded, â€œAll the evidence we have says that the universe had a beginning.â€ An editorial at ''New Scientist'' called this, â€œThe Genesis Problem.â€"

	[[Category:Cosmology]]		[[Category:Cosmology]]

Mxmsj: Created page with "[http://www.thesacredpage.com/2012/01/hawkings-bummer-birthday-no-eternal.html "Hawkings Bummer Birthday: No Eternal Universe."] Quotes [http://crev.info/2012/01/cosmologists-fo..."

2012-01-21T21:13:13Z

Created page with "[http://www.thesacredpage.com/2012/01/hawkings-bummer-birthday-no-eternal.html "Hawkings Bummer Birthday: No Eternal Universe."] Quotes [http://crev.info/2012/01/cosmologists-fo..."

New page

[http://www.thesacredpage.com/2012/01/hawkings-bummer-birthday-no-eternal.html "Hawkings Bummer Birthday: No Eternal Universe."]

Quotes [http://crev.info/2012/01/cosmologists-forced-to-in-the-beginning/ "Cosmologists Forced to 'In the Beginning'":]

"Here are the models in brief and why they donâ€™t work:

* '''Eternal inflation''': Built on Alan Guthâ€™s 1981 inflation proposal, this model imagines bubble universes forming and inflating spontaneously forever. Vilenkin and Guth had debunked this idea as recently as 2003. The equations still require a boundary in the past.
* '''Eternal cycles''': A universe that bounces endlessly from expansion to contraction has a certain appeal to some, but it wonâ€™t work either. â€œDisorder increases with time,â€ Grossman explained. â€œSo following each cycle, the universe must get more and more disordered.â€ Logically, then, if there had already been an infinite number of cycles, the universe would already been in a state of maximum disorder, even if the universe gets bigger with each bounce. Scratch that model.
* '''Eternal egg''': One last holdout was the â€œcosmic eggâ€ model that has the universe hatching out of some eternally-existing static state. â€œLate last year Vilenkin and graduate student Audrey Mithani showed that the egg could not have existed forever after all, as quantum instabilities would force it to collapse after a finite amount of time (arxiv.org/abs/1110.4096).â€ No way could the egg be eternal.

The upshot of this is clear. No model of an eternal universe works. Vilenkin concluded, â€œAll the evidence we have says that the universe had a beginning.â€ An editorial at New Scientist called this, â€œThe Genesis Problem.â€"

[[Category:Cosmology]]