orthonormal comments on Harry Potter and the Methods of Rationality discussion thread, part 2 - Less Wrong

13 Post author: dclayh 01 August 2010 10:58PM

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Comment author: orthonormal 06 August 2010 03:04:48AM *  5 points [-]

Maybe an acausal ship? Say, Harry / Riddle?

Comment author: Unnamed 06 August 2010 04:07:01AM 11 points [-]

Sinhababu's 2008 Pacific Philosophical Quarterly article is the definitive essay on acausal ships.

Comment author: NancyLebovitz 07 August 2010 10:51:24AM 0 points [-]

David Lewis had a crazy but interesting suggestion. According to Lewis, there are an infinite number of universes ("possible worlds") out there, one for each possible way the world could be. These universes are disconnected from each other in space and time, and set up so that nothing in one universe can cause events in another universe.

Lewis may actually have heard of the physics, but Sinhababu seems to think of many worlds as a purely philosophical construct.

Comment author: knb 06 August 2010 03:45:01AM *  2 points [-]

Only on Less Wrong does the phrase "acausal ship" make sense.

Comment author: Kevin 06 August 2010 03:48:12AM 3 points [-]

I'm not sure it even makes sense here...

Comment author: wedrifid 07 August 2010 03:47:35AM 0 points [-]

Now it does.

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