Amathematicalmodelisacaricature,adeliberateoversimplificationofreality.
Assuch,itsweaknessesmaybetransparent,itslimitationsobvious.
Thisisnotso,perhaps,withtheinvisiblemodeladecisionmakerorresearcher
mustinevitablyuse.Butsomeformofmodelmustbeimplicitin
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