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kilobug comments on Open thread, Jul. 18 - Jul. 24, 2016 - Less Wrong
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Assuming the universe is infinite, is it theoretically possible to transform it into something finite?
Reason for asking: if this is possible, it would have important implications on infinite ethics and the value and potential trajectories of the far future.
"Infinite" is only well-defined as the precise limit of a finite process. When you say "infinite" in absolute, it's a vague notion that is very hard to manipulate without making mistakes. One of my university-level maths teacher kept saying that speaking of "infinite" without having precise limit of something finite is equivalent to dividing by zero.