Death by fire or ice? Why we can’t live forever in a Singularity future. Einstein’s general...
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![Page 1: Death by fire or ice? Why we can’t live forever in a Singularity future. Einstein’s general theory of relativity gives us a critical number the universe.](https://reader036.fdocument.pub/reader036/viewer/2022081503/56649d585503460f94a36eb6/html5/thumbnails/1.jpg)
Death by fire or ice?Death by fire or ice?Why we can’t live forever in a Singularity future.Why we can’t live forever in a Singularity future.
Einstein’s general theory of relativity gives us a critical number the universe must meet to continue expanding at it’s current rate Ω=1 roughly 3 hydrogen atoms per cubic meter but what if Ω>1 or Ω<1?
![Page 2: Death by fire or ice? Why we can’t live forever in a Singularity future. Einstein’s general theory of relativity gives us a critical number the universe.](https://reader036.fdocument.pub/reader036/viewer/2022081503/56649d585503460f94a36eb6/html5/thumbnails/2.jpg)
The Big Crunch• What is it?- The universe is not massive enough to over
power gravity, in this case it will contract to a single infinitely massive point.
• When is it?- Approximately 10 billion years
![Page 3: Death by fire or ice? Why we can’t live forever in a Singularity future. Einstein’s general theory of relativity gives us a critical number the universe.](https://reader036.fdocument.pub/reader036/viewer/2022081503/56649d585503460f94a36eb6/html5/thumbnails/3.jpg)
• What is it?- The universe is massive enough to over power
gravity, in this case it will expand forever.
• When is it?- All stars will die in approx. 1014 (100 trillion)
years
The Big Freeze
![Page 4: Death by fire or ice? Why we can’t live forever in a Singularity future. Einstein’s general theory of relativity gives us a critical number the universe.](https://reader036.fdocument.pub/reader036/viewer/2022081503/56649d585503460f94a36eb6/html5/thumbnails/4.jpg)
Why?
• The law’s of thermodynamics. - You can’t have something for nothing - You can’t win - You can’t get out
•The shape of the universe