The Big Freeze (also Big Chill) is a scenario in which the universe becomes too cold to sustain life due to continued expansion and the decay of free energy due to the action of entropy.The Big Freeze is a theory of a possible fate of the universe. The Big Freeze could occur if the universe's geometry is either flat or hyperbolic, as either of those would mean that the universe would expand indefinitely eventually reaching absolute zero (￢ﾈﾒ273.1...
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The Big Freeze (also Big Chill) is a scenario in which the universe becomes too cold to sustain life due to continued expansion and the decay of free energy due to the action of entropy.The Big Freeze is a theory of a possible fate of the universe. The Big Freeze could occur if the universe's geometry is either flat or hyperbolic, as either of those would mean that the universe would expand indefinitely eventually reaching absolute zero (￢ﾈﾒ273.15 ￂﾰC or ￢ﾈﾒ459.67 ￂﾰF, also defined as 0 K or 0 ￂﾰR).
For the universe to expand indefinitely, the shape of the universe as a whole needs to be flat or hyperbolic; this requirement stems from the density of the universe in those particular geometric shapes. There are three likely possibilities for the universe's shape.
For the Big Freeze theory to happen, the shape of the Universe must be either hyperbolic or flat. If it is hyperbolic, which is usually pictured as a saddle shape, then the density must be lower than the critical density ...
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