That is not what this is about. I have a problem when physical models are naively applied to economic models, i.e. "let's assume global supply is a liquid with

That is not what this is about. I have a problem when physical models are naively applied to economic models, i.e. "let's assume global supply is a liquid with variable viscosity" and the whole econophysics approach. The article is not hardcore econophysics though, but basically a little bit of regression and then deference to physics without any economics.