I don't understand your comment. I literally have no words going through my head most of the time, unless I'm composing text or speech as I am doing right now. The rest of the time as I go about my business and solving problems throughout the day: zero words. Nada. Zilch. Furthermore, having to think in words is a mental strain on my energy level that I don't feel when non-verbally solving problems. I could be doing very intense engineering work and find it less mentally taxing than forcing myself to speak for a few minutes or compose an email. It's a qualitative difference, not a spectrum.