Wright would get salty about people over six feet tall being allowed to walk around in his buildings because he felt it threw off the sense of scale. I'm not sure he ever really grasped that buildings are things people live in.
Thoughts, if you pay too much attention, are fragmented. Even before you think something in the front of your mind, you've plotted it out further back, and in that way you've already thought it by the time it makes it forward. And then there's no point actually thinking it.