Formulation of the claim
Arkoun divides the domains of understanding into three: the thinkable, the unthinkable, and the unthought.
Explanation
The text links these boundaries to their transformation through history; they are not fixed, but change according to what prevails in each stage socially, culturally, and theologically. In this sense, cognitive boundaries become a historical movement rather than a rigid framework.
Their place in the book’s argument
This formulation appears within Arkoun’s attempt to regulate the conditions of understanding itself, rather than merely interpreting ideas within their usual limits. It belongs to a framework that shows that thought does not move in a vacuum, but within domains that expand and contract according to historical context.
What the atom does not say
The page does not explain here how these domains are distributed in the details of application, nor does it provide detailed examples of each domain. It also does not expand on the mechanisms by which these boundaries are transformed.