I’ve previously suggested there should be an overlap between non-naive realism and non-subjective idealism, and indicated a preference for constructive reasoning in formal contexts. The other day I referred in passing to the “constructive-flavored” character of the principle of sufficient reason or “nothing comes from nothing”. The “flavored” suffix refers to the fact that the contexts in which the principle applies are not formal, so the application of “constructive” is somewhat metaphorical. But the connection with sufficient reason is easy to see. In constructive reasoning, every step requires evidence. Therefore, all assumptions are hypothetical or defeasible. No valid assertion “comes from nothing”. I was talking about secondary causes and neoplatonic “procession” and what not as a sort of illustration of this on the side of the development or unfolding of conceptual content. In another recent post, I was stressing the role of dialectic and practical judgment over pure deductive reasoning in Aristotle. Putting all this together, it occured to me that “non-naive realism” might be further specified as “constructive realism” (now dropping the suffix for convenience) in which the constructively flavored activity consists of said dialectic and practical judgment.
In contrast to Michael Dummet, I don’t at all see why constructive needs to mean “anti-realist”, and I don’t like such dichotomous divisions in general. A constructive realism would be about achieving realism through the mediation of concrete dialectic and practical judgment and development of content (the only way it really can be done, I think). It would thus be a mediated realism, in which the thickness of the mediation yields the substantiality of the reality.