When a deal stalls, the instinct is to push harder — more follow-ups, more urgency, more information. But the 11th-century Persian scholar Al-Biruni, writing about the scientific method before the term existed, observed that the mind's greatest enemy is not ignorance but premature certainty: the moment you've decided you know what's blocking a sale, you stop seeing what's actually there. Pair that with what psychologist George Loewenstein mapped as the 'information gap' — not a generic curiosity, but the specific discomfort of knowing there's something you don't know — and a sharper strategy emerges. The next time a prospect goes quiet, instead of filling the silence with product benefits, try naming the gap out loud: 'I'm not sure I fully understand what matters most to you here.' That single move shifts the dynamic from persuasion to genuine inquiry, and people almost always step into a real question.

Name one assumption you're currently holding about a prospect or client that you've never actually tested with them directly.

Drawing from Medieval Islamic Philosophy of Science combined with Behavioral Economics — Al-Biruni (Kitab al-Tafhim, c. 1029, on systematic observation) & George Loewenstein ('The Psychology of Curiosity', Psychological Bulletin, 1994)