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utilitymonster comments on Open Thread: July 2010 - Less Wrong
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Is there really a cosmology that says that most beings with my subjective experiences are Boltzmann brains? It seems to me that in a finite universe, most beings will not be Boltzmann brains. And in an infinite universe, it's not clear what "most" means.
This is always hard with infinities. But I think it can be a mistake to worry about this too much.
A rough way of making the point would be this. Pick a freaking huge number of years, like 3^^^3. Look at our universe after it has been around for that many years. You can be pretty damn sure that most of the beings with evidence like yours are Botlzmann brains on the model in question.