Nothing here for you.
If you never fail at complex tasks.
It's right there. On the tip of your tongue. The thing you can say a thousand times, know cold, could recite in your sleep. And at the exact moment it matters, nothing comes. There's a name for that: going blank.
It sounds counter-intuitive, but research* shows this happens most to the most intelligent, best-prepared, most articulate professionals. Under pressure, part of your working memory gets pulled into managing the pressure itself, the exact resource you normally rely on for your best work. Simply feeling watched is enough on its own to disrupt word retrieval. The knowledge doesn't disappear. Access to it is temporarily blocked.
Going blank at a crucial moment is not only uncomfortable. It can cost you the negotiation, lose you the debate, or weaken your position on whatever stage you're on. That it happens to the sharpest minds might feel like comfort. It changes nothing.
Now, the good news: it is fixable. Here's how.
*Beilock & Carr (2005), When High-Powered People Fail , Journal of Experimental Psychology: General · Arnsten, Stress signalling pathways that impair prefrontal cortex structure and function , Nature Reviews Neuroscience · Tip of the Tongue States Increase Under Evaluative Observation , Journal of Psycholinguistic Research