Thought
Generally there is presented the impression that someone can just sit back and start thinking up new things. A sort of spontaneous outburst of intelligence.
I merely pointed out that it's all reaction. My post, your post, this post...all just reaction. Yes, it's thinking, but it's not the broad brush usually used to depict human thinking processes.
We can't think without external cues. If the rest of the universe disappears - WE disappear - because we are all merely a unique reflection of the universe.
;-) See what I'm getting at?