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MagnetoHydroDynamics comments on Rationally Irrational - LessWrong

-14 Post author: HungryTurtle 07 March 2012 07:21PM

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Comment author: MagnetoHydroDynamics 06 April 2012 06:57:48PM 1 point [-]

The evidence that the territory is static is called Physics. The laws does not change, and the elegant counterargument against anti-inductionism is that if induction didn't work our brains would stop working, because our brains depend on static laws.

There is no evidence whatsoever that the map is static. It should never be, you should always be prepared to update, there isn't a universal prior that lets you reason inductively about any universe.

Comment author: HungryTurtle 06 April 2012 08:18:32PM -3 points [-]

The evidence that the territory is static is called Physics

The territory is not static. Have you ever heard of quantum physics?

Comment author: army1987 06 April 2012 10:39:33PM 0 points [-]

Quantum physics is invariant under temporal translation too.

Comment author: Dmytry 06 April 2012 10:48:12PM *  2 points [-]

The laws don't change by definition. If something changes, we try to figure out some invariant description of how it changes, and call that a law. We presume a law even when we don't know the invariant description (as is the case with QM&gravity combined). If there was magic in the real world, we'd do the same thing and have same invariant laws of magic, even though number of symmetries may have been lower.

Comment author: MagnetoHydroDynamics 06 April 2012 08:47:06PM 0 points [-]

The territory is governed by unchanging perfectly global basic mathematically simple universal laws.

The Schrödinger equation does not change. Ever.

And further more, you can plot the time dimension as a spatial dimension and then navigate a model of an unchanging structure of world lines. That is an accepted model called the Block Universe in General Relativity. The Block universe is 'static' that is, without time.

There is reason to believe the same can be done in quantum mechanics.