Speaking as a mathematician, for me it is: It boils down to choosing a proper probability space. After that, you have the full force of probability theory on ha

Speaking as a mathematician, for me it is: It boils down to choosing a proper probability space. After that, you have the full force of probability theory on hand. Of course it's not always simple or obvious, how to choose your model. If that is the point, the article tries to make, I agree.