I would also say that another, perhaps controversial shortcoming of rational thinking is that it presumes the human mind can process and reason with all aspects

I would also say that another, perhaps controversial shortcoming of rational thinking is that it presumes the human mind can process and reason with all aspects of reality. But using rational thinking, isn't it rational to also presume that there could be aspects of reality which the human brain simply isn't equipped to process but are still real in that we can sense and be affected by them? This is similar to how a person born blind accepts the reality of the visible world without ever experiencing or being able to rationalize it. Or perhaps a better analogy would be ants and other insects who only think/see in 2d (or so I heard, correct me if this is wrong).