In case you wondered …

… Philip Kitcher: The Trouble With Scientism | The New Republic. (Hat tip, Dave Lull.)

The idea of a “theory of everything” is an absurd fantasy. Successful sciences are collections of models of different types of phenomena within their domains. The lucky ones can generate models that meet three desiderata: they are general, they are precise, they are accurate. Lots of sciences,natural sciences, are not so fortunate. As the ecologist Richard Levins pointed out decades ago, in many areas of biology—and, he might have added, in parts of physics, chemistry, and earth and atmospheric science as well—the good news is that you can satisfy any two of these desiderata, but at the cost of sacrificing the third. Contemporary climatology often settles for generality and accuracy without precision; ecologists focusing on particular species provide precise and accurate models that prove hard to generalize; and of course if you abandon accuracy, precision and generality are no problem at all.