Imagining theory is an important step in early theory construction. For example, if you are working from an assumption that everyone is guided only by her self-interest, the counterfactual opposite...

Imagining theory is an important step in early theory construction. For example, if you are working from an assumption that everyone is guided only by her self-interest, the counterfactual opposite might be that everyone is guided by the welfare of others. Think about how that might change rational choice theory.