no, if you did progress in your education beyond an undergrad degree then you would know how ignorant that sounds. There is a host of other theoretical models and extensions that incorporate different stuff like innovations, pollution, human capita, etc. And they all make logical sense, whether or not they can be tested reliably is another matter. Human capital for example is empirically . And that Noah Smith graph doesn't even show anything, only that Poland and China GDP growth rates are largely the same for an unspecified time period since its x-axis is not even labelled. With a vague data like that you can make all sorts of arguments to explain the Polish growth, Eastern expansion of the Eurozone, investments from rich neighbours like Germany, increase in trade with the rest of Europe. But you can't compare China with Poland without serious economic modelling and econometrics, they are not the same in size, geographical layout, demographic, economic starting point...
This is TFP lmao.
I don't necessarily agree with chgough34 on everything, but I'm not a China hawk or whatever. But it is funny to see you talking about "undergrad this" and "TFP is laughable" and then just see you, ultimately, talking about TFP.