Qiaochu_Yuan comments on What resources have increasing marginal utility?

Qiaochu_Yuan 16 Jun 2014 4:22 UTC
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Agreed. The mapping from Amazon ratings to actual trustworthiness is pretty nonlinear.
- Gunnar_Zarncke 16 Jun 2014 7:13 UTC
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  Nonlinearity alone wouldn’t be a problem. The problem is that the mapping isn’t injective.
  - Dr_Manhattan 16 Jun 2014 19:06 UTC
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    For Less Mathy Humans(tm) “100% trust between humans is not expressible by any Amazon rating” (I think)