5-1b1a8 ‘Opportunity cost’ and ‘comparative advantage’ must be rooted in explanations. Never use them as ad hoc criteria.
3-1d5 You can question the adequacy of the tools at hand insofar as it relates to some specific problems of yours. You don’t evaluate them ‘comparatively’ based on its ‘utility’ without explanations.
1-2h A good explanation makes it harder to fool yourself