I have enjoyed following string theory, but from Woit and Smolin have also wondered about the status of this new physics. But discussing marginalism and then reading this book, Bankrupting Physics, I was alerted to the existence, it seems, in physics of mathematical ‘dead zones’: fluent fields of mathematical exuberance that are in reality unconnected to their subject matter. I have always thought marginalism was a borderline pseudoscience, but felt unsure about saying so. But the discussion from a negative perspective of string theory and the fields of mathematical finesse that prove nothing was an eye-opener.
As far as physics is concerned, the plight of string theory looks ominous for the field of physics.
The totally different case of mathematical economics suddenly shows my skepticism strengthened by the suspicion of mathematical fantasy theory and the difficulty of exposing its basically illusory connection to reality.