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gjm comments on The Zeroth Skillset - Less Wrong Discussion
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"A heuristic, not an algorithm": what difference are you intending to convey? (I wasn't trying to suggest that you think avoiding poor people gives some kind of guarantee, or anything like that. A heuristic is what I took you to be saying it was. For me, at least, a heuristic is a kind of algorithm.)
"Not ... for safety": do you mean that there are other purposes to it besides safety? OK, fair enough (though your presentation of this "skill" here has been all about safety) but I don't think it makes a difference to what I'm saying: safety together with the other things you intend this to achieve are still not the only things that matter, and I gravely doubt that the broad-brush policy of avoiding poor people is a great way of achieving those other things (by comparison with less-simplistic heuristics) -- though on that point I'm prepared to be convinced.
A heuristic is a fuzzy set of principles that are correlated with the outcomes you want. An algorithm is a set of directions that give you the outcome you want. When I say "avoiding poor people is a heuristic" I mean that it is the high level abstraction of a bunch of low level behaviors in various situations.
Something can be an algorithm despite not necessarily giving you exactly the outcome you want. Hence approximation algorithms and probabilistic algorithms.
Edit: the boundaries between algorithms and heuristics are complicated. Colloquial usage referring to heuristics as something like "rules of thumb" and algorithms as "a set of directions" is what was intended.