billswift comments on If it looks like utility maximizer and quacks like utility maximizer... - Less Wrong
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Search, or at least its results, is what selection works on. You could even think of evolution as a dual process with mutations as searches of possible genetic combinations followed by selection for survival and reproduction.
I strongly recommend Jonathan Baron's "Thinking and Deciding"; he conceptualizes all thinking, decision making, creativity as the dual process of searching and selection. It's a very interesting book. (I'm reading an older edition and am not yet finished, so I don't know how well he makes the case in total, or how he may have modified his ideas for later editions. But what I have read so far is fascinating.)
So... to return to my unanswered questions:
Is exhaustive search a "selection process"? What about random search?
If yes, is there any search strategy that is not a "selection process"? (If no, then what is it?) Otherwise, "selection process" is just a rather useless synonym for "search", and the cited thesis just says you can't find an optimum unless you actually look for it.
If no, that defeats the cited thesis - that optimisation only results from selection processes - since exhaustive search optimises functions fine.