Just a layman here so Im not sure if Im understanding (probably not), but humans dont analyze every possible scenario ad infinitum, we go based on the accumulation of our positive/negative experiences from the past. We make decisions based on some self construed goal and beliefs as to what goes towards those goals, and these are arbitrary with no truth. Napolean for example conquered Europe perhaps simiply becuause he thought he was the best to rule it, not through a long chain of questions and self doubt

We are generally intelligent only in the sense that our reasoning/modeling capabilities allow us to understand anything that happens in space-time.