Mercier & Sperber (M&S) argue for their argumentative theory in terms of communicative abilities. Insights can be gained by extending the discussion beyond human reasoning to rodent and robot navigation. The selection of arguments and conclusions that are mutually reinforcing can be cast as a form of abductive reasoning that I argue underlies the construction of cognitive maps in navigation tasks.

Mercier & Sperber (M&S) claim that the phenomenon of belief bias provides fundamental support for their argumentative theory and its basis in intuitive judgement. We propose that chronometric evidence necessitates a more nuanced account of belief bias that is not readily captured by argumentative theory.

We note the development of the widely employed but loosely defined construct of critical thinking from its earliest instantiations as a measure of individual ability to its current status, marked by efforts to better connect the construct to the socially-situated thinking demands of real life. Inquiry and argument are identified as key dimensions in a process-based account of critical thinking. Argument is identified as a social practice, rather than a strictly individual competency. Yet, new empirical evidence is presented documenting a (...) role for individual reasoning competencies in supporting the effectiveness of argumentive discourse. A successful curriculum is described for employing extended engagement in dialogic argumentation as a pathway to development of individual argumentive skill. (shrink)

In this paper, the role played in learning to argue by an essential and yet under-researched epistemic and argumentative norm is discussed, namely, the consistency requirement. An argumentative intervention is presented, that is designed to enhance the understanding of this norm among high school students, to enable them to recognize contradictions in the process of argumentation and to familiarize them with the argumentative strategies related to the reductio ad absurdum. There follows a description of how the designed intervention was implemented (...) in two Italian high schools, which served as an exploratory case study, and the results obtained are discussed. (shrink)

Having defended the usefulness of our definition of reasoning, we stress that reasoning is not only for convincing but also for evaluating arguments, and that as such it has an epistemic function. We defend the evidence supporting the theory against several challenges: People are good informal arguers, they reason better in groups, and they have a confirmation bias. Finally, we consider possible extensions, first in terms of process-level theories of reasoning, and second in the effects of reasoning outside the lab.

It warrants examining how well people can come to argue under supportive conditions, not only what they do under ordinary conditions. Sustained engagement of young people in dialogic argumentation yields more than the temporary that Mercier & Sperber (M&S) identify in the target article. If such engagement were to become the norm, who can say what the argumentive potential of future generations is?