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In the field of [[Cosmology]], '''cosmic inflation''' is a theory which posits that in the first 10^-35 of a second after the [[Big Bang]], the universe underwent a period of rapid, exponential [[inflation]], with it increasing in size by a factor of at least 10²⁶, or ''"to essentially arbitrarily large universe"''<ref name="Filippenko"/>, i.e. at miraculous rate much faster than the currently measured [[speed of light]].<ref name="DismantlingBB"/> It was first proposed by [[Alan Guth]] of [[MIT]], in 1981, who declared, in line with tenets of [[postmodern science]], to explore ''"the question of whether it is in principle possible to ignite inflation in a hypothetical laboratory, thereby creating a new universe"''<ref name="Guth">{{cite web|title=Faculty Directory: Alan Guth, Victor F. Weisskopf Professor of Physics|publisher=Massachusetts Institute of Technology, Department of Physics|accessdate=03.03.2013|url=http://web.mit.edu/physics/people/faculty/guth_alan.html|quote=}}</ref>. The theory, described by [[Alexei Filippenko|Alexei V. Filippenko]] as ''"seductively powerful"''<ref name="Filippenko">{{cite web |title=Alex on the Frontiers of Astronomy 4 Our Universe One of many|date=September 24, 2013 |url=http://www.youtube.com/watch?v=TY57qWPwMgc|accessdate=October 31, 2013|quote=[06min:00sec]The standard Big Bang theory has no natural explanation for why the energy density of the universe should be exactly this critical value such as that the energy density of the universe divided by the critical value is exactly the unity. It’s an arbitrary thing in a Big Bang -it could have been anything. ... The theory is seductively powerful ...

In the field of [[Cosmology]], '''cosmic inflation''' is a theory which posits that in the first 10^-35 of a second after the [[Big Bang]], the universe underwent a period of rapid, exponential [[inflation]], with it increasing in size by a factor of at least 10²⁶, or ''"to essentially arbitrarily large universe"''<ref name="Filippenko"/>, i.e. at miraculous rate much faster than the currently measured [[speed of light]].<ref name="DismantlingBB"/>{{#tag:ref| cf. ''“There are considerable variations in the speed of expansion . It may be much faster than the speed of light as it is supposed to have been in the first zillionth of a second after the Bing Bang according to inflation theory, a now very popular patch up of the original BBC (Big Bang Cosmology), which Pecker refers to as the New Big Bang.“'' <ref>{{cite book |author=MarcoM. Capria, Aubert Daigneaut et al. |title=Physics Before and After Einstein |publisher=IOS Press |year=2005 |chapter=13. Standard Cosmology and Other Possible Universes |isbn=1-58603-462-6 |url=}}</ref> In the final section of his 1905 paper, Einstein explicitly states that, ''“velocities greater than that of light have … no possibility of existence.”'' If proponents of Inflation theory are at the same time adherents of Einstein’s theories, then one may argue that their theory represents a system with no possibility of existence by their own standards or the theory clearly represents a miracle beyond natural laws accepted by them. |group=note}} It was first proposed by [[Alan Guth]] of [[MIT]], in 1981, who declared, in line with tenets of [[postmodern science]], to explore ''"the question of whether it is in principle possible to ignite inflation in a hypothetical laboratory, thereby creating a new universe"''<ref name="Guth">{{cite web|title=Faculty Directory: Alan Guth, Victor F. Weisskopf Professor of Physics|publisher=Massachusetts Institute of Technology, Department of Physics|accessdate=03.03.2013|url=http://web.mit.edu/physics/people/faculty/guth_alan.html|quote=}}</ref>. The theory, described by [[Alexei Filippenko|Alexei V. Filippenko]] as ''"seductively powerful"''<ref name="Filippenko">{{cite web |title=Alex on the Frontiers of Astronomy 4 Our Universe One of many|date=September 24, 2013 |url=http://www.youtube.com/watch?v=TY57qWPwMgc|accessdate=October 31, 2013|quote=[06min:00sec]The standard Big Bang theory has no natural explanation for why the energy density of the universe should be exactly this critical value such as that the energy density of the universe divided by the critical value is exactly the unity. It’s an arbitrary thing in a Big Bang -it could have been anything. ... The theory is seductively powerful ...

And then universe went through gigantic exponential expansion that took it from a microscopically tiny size-scales to essentially arbitrarily large universe.}}</ref>, tries to account for several objections to the [[Big Bang theory|Big Bang model]]<ref>http://physicsworld.com/cws/article/print/24768</ref><ref>http://www.symmetrymagazine.org/cms/?pid=1000045</ref>, in order to preserve the illusion that this model explains the origin of the [[universe]]<ref name="DismantlingBB"/>. [[John Hartnett|J.Hartnett]] calls Cosmic Inflation theory an ad hoc assumption rather than specification of a causal mechanism, introduced by Big Bang theorists as a result of three-fold need<ref name="DismantlingBB">{{cite book|author=Alex Williams, John Hartnett|title=Dismantling the Big Bang|publisher=Master Books|location=Green Forest, AR, USA|year=2005|page=101|pages=121-125, 130-131, 145|isbn=978-0-89051-437-5|url=http://books.google.com/books?id=FR7basoxkSwC&printsec=frontcover&dq=hartnett+dismantling+the+big+bang&hl=en&sa=X&ei=JvNwT_6nJJOP4gTP6fG_Ag&sqi=2&ved=0CC4Q6AEwAA#v=onepage&q=hartnett%20dismantling%20the%20big%20bang&f=false}}</ref>:

And then universe went through gigantic exponential expansion that took it from a microscopically tiny size-scales to essentially arbitrarily large universe.}}</ref>, tries to account for several objections to the [[Big Bang theory|Big Bang model]]<ref>http://physicsworld.com/cws/article/print/24768</ref><ref>http://www.symmetrymagazine.org/cms/?pid=1000045</ref>, in order to preserve the illusion that this model explains the origin of the [[universe]]<ref name="DismantlingBB"/>. [[John Hartnett|J.Hartnett]] calls Cosmic Inflation theory an ad hoc assumption rather than specification of a causal mechanism, introduced by Big Bang theorists as a result of three-fold need<ref name="DismantlingBB">{{cite book|author=Alex Williams, John Hartnett|title=Dismantling the Big Bang|publisher=Master Books|location=Green Forest, AR, USA|year=2005|page=101|pages=121-125, 130-131, 145|isbn=978-0-89051-437-5|url=http://books.google.com/books?id=FR7basoxkSwC&printsec=frontcover&dq=hartnett+dismantling+the+big+bang&hl=en&sa=X&ei=JvNwT_6nJJOP4gTP6fG_Ag&sqi=2&ved=0CC4Q6AEwAA#v=onepage&q=hartnett%20dismantling%20the%20big%20bang&f=false}}</ref>:

::# Due to extreme density of its initial stages, the early Big Bang scenario was in danger of gravitationally driven re-collapse into a [[singularity]].  

::# Due to extreme density of its initial stages, the early Big Bang scenario was in danger of gravitationally driven re-collapse into a [[singularity]].  

==See also==

==See also==

*[[Gravitational lensing]]

*[[Gravitational lensing]]

== References ==

== References ==