The medieval Persian physician Ibn Sina noticed something that modern decision researchers have since confirmed by other names: people do not reason their way into most beliefs — they feel their way in, and reason follows as a kind of bodyguard. He called this the priority of the estimative faculty, the inner sense that appraises a situation as safe or threatening before any explicit thought begins. What's striking is that the 20th-century psychologist Silvan Tomkins, working from completely different material — affect theory — arrived at the same architecture. Tomkins argued that affect is the primary motivational system; cognition amplifies or dampens it, but never initiates it. Together, these two thinkers — separated by nine centuries and entirely different methods — converge on something that changes how you watch people make decisions. When someone in a meeting resists an idea that is clearly well-reasoned, they are almost certainly not making a reasoning error. They are responding to an affective signal — threat, unfamiliarity, loss of status-adjacent feeling — that arrived before your argument did. The practical move isn't to make a better argument. It's to change what arrives first.

Think of a recent decision you made that you later justified with reasons — what was the feeling that actually came first, and did your reasoning confirm it or interrogate it?

Drawing from Islamic Philosophy / Affect Theory — Ibn Sina (with structural parallel to Silvan Tomkins)