Slide #1.

Stephan Hoyer Physics 120 seminar May 5, 2008
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Slide #2.

 Physical – physics, the only true science  Eschatology – study of the end of times
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Slide #3.

 Most broadly, what is the future of intelligent life in the universe?  What does intelligent life look like (assuming its out there)?  Could intelligent life live forever?
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Slide #4.

 Fermi paradox:  Why hasn’t SETI has been successful? But seriously, there's loads of intelligent life. It's just not screaming constantly in all directions on the handful of frequencies we search.
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Slide #5.

 Standing assumption:  All that matters is information processing  Thus life is entropy production  Brillouin inequality gives a limit on the number of bits that can be processed with energy E at temperature T: Energy is good Cold is good
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Slide #7.

Spectral lines showing -IR radiation -Matter-antimatter collisions “Pit lamping” at Europa
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Slide #8.

 Big Crunch – Big Bang in reverse  Heat death – Entropy wins!  Big Rip – Universe ripped apart in finite time
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Slide #9.

 Infinite computation with finite energy?  Metabolic rate of a civilization:  Subjective  If time: and  We live forever!
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Slide #10.

From a real physics paper
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