Wait... go back to how you connected "simplicity is key" to automatic reflex.
The title is related because I was just trying to get across the point that we use fixed action patterns to make our life simpler i.e. "Simplicity is key"
What your definition of that is. Example?
In our lives we have to make many complicated decisions and we all have limits on the capacity for complexity. So we search for reliable short-cuts and cues aka fixed action patterns.
For example, habits you may do with out realizing it like twitching your leg and biting your nails you may not realize you do it but it could be a signal other can read.
Are you saying our gut reactions are dangerous because people are able to manipulate them?
I am saying they are dangerous because we don't realize we do the short cuts in our lives because they are so learned ands internalized that because of our lack of awareness we could loose control and be manipulated.