Interesting.<p>When reading, I have an internal monologue. I find it hard to hold a definite train of though when walking, though, because there&#x27;s too much too see.<p>So, I&#x27;ll go for a walk to think about some algorithm, or whatnot, but can&#x27;t really consciously thing through the algo because of all the visual input. The visual input does tend to drive visual or tactile thinking, but there are no words for this.<p>In the past, I&#x27;ve resorted to speaking out loud to think through concepts, carefully. Somehow spoken (not subvocalized) words are more concrete (and limiting) they don&#x27;t flap and fray in the wind of my mental music video.