Thomas comments on Scaling Evidence and Faith - Less Wrong

-3 [deleted] 27 December 2009 12:30PM

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Comment author: Thomas 27 December 2009 01:39:52PM -1 points [-]

You have no proofs for the core beliefs. They are always assumed only.

Had you have a proof for one of your core belief, it would relay on some deeper beliefs - and those were your core beliefs.

It's alway an arbitrary set of axioms you starts with. Always. An old axiom of yours can be deleted only if it confronts some others.

Comment author: Vladimir_Nesov 27 December 2009 02:13:24PM 2 points [-]

It's alway an arbitrary set of axioms you starts with. Always. An old axiom of yours can be deleted only if it confronts some others.

Not "arbitrary", and very much specific and immutable.

Comment author: Cyan 27 December 2009 10:48:42PM 1 point [-]

I'm surprised that a post that basically does nothing but acknowledge inductive bias is presently at -2.

Comment author: AndrewKemendo 29 December 2009 10:11:12AM 1 point [-]

I had not read that part. Thanks.

I do not see any difference in inductive bias as it is written there and dictionary and wikipedia definitions of faith:

Something that is believed especially with strong conviction(http://www.merriam-webster.com/dictionary/faith)

Faith is to commit oneself to act based on sufficient experience to warrant belief, but without absolute proof.

Comment author: whpearson 27 December 2009 11:26:14PM 0 points [-]

The GP's comment doesn't sit right with me for this reason.

The entity that has the arbitrary axioms in the case of humanity is the genotype, not the phenotype. It has discovered non-arbitrary heuristics that we use day to day. Those heuristics have helped us survive in this harsh world over the millennia, so have been put to the test and found adequate.

Comment author: Cyan 28 December 2009 07:59:51PM 1 point [-]

At first, I thought this was a reasonable comment, but then it occurred to me that the non-arbitrary heuristics were optimized for self-perpetuation, not true beliefs.

Comment author: whpearson 28 December 2009 09:19:32PM 0 points [-]

Self-perpetuation is a flavour of winning, no? So while I wouldn't argue that our non-arbitrary heuristics our optimized for true beliefs, they should have some relation to instrumental rationality for self-perpetuation.

I'd argue that the sets of agents optimised for instrumental rationality and epistemic rationality are not disjoint sets. So optimising for self-perpetuation might optimise for true beliefs, dependent upon what part of the system space you are exploring. We may or may not be in that space, but our starting heuristics are more likely to be better than those picked from an arbitrary space for truth seeking.

Comment author: Cyan 29 December 2009 02:54:11AM *  0 points [-]

I do not disagree with the parent. I think a defense of the use of the term "arbitrary" in the root comment could be mounted on semantic grounds, but I prefer to give only the short short version: arbitrary can mean things other than "chosen at random".