As a former cognitive neuroscientist with a master's in psychology, I will just point out that psychology departments look at the massive amount of data demonstrating human irrationality, and conclude that economists are mistaken or wildly naive to extrapolate from "rational actors" human beings.
You don't have a "math problem", you have a "data/science problem". And saly, at least at the micro-level, economists could have disabused themselves of the accuracy of rationality decades ago (e.g., Kahneman and Tversky's work in the 70's).
Much modern economics is like the elaborate math of epicycles, close enough, but still missing key insights. And this won't change until data is valued more.
You don't have a "math problem", you have a "data/science problem". And saly, at least at the micro-level, economists could have disabused themselves of the accuracy of rationality decades ago (e.g., Kahneman and Tversky's work in the 70's).
Much modern economics is like the elaborate math of epicycles, close enough, but still missing key insights. And this won't change until data is valued more.