I love this insight. I have often experienced in my life seeing someone come up with something really useful in the midst of spouting complete rubbish. Oddly it is about 50/50 internal and external, where half the time they stop in the middle of what they are saying and realize they have a really good idea, and half the time someone else stops them and says "hey, that could really work." or something like that. The c…
It cost me a year (1/90th of my life? 1/75th? 1/50th? less?) to realize this. From what I understand, I'm far from alone -- and basically every career path risks this cost.
Emphasizing this nugget of truth by placing it at the bottom of your post is commendable.