The problem lies in the psychology of human judgment . Much research going back to the classic work by Kahneman and Tversky demonstrates that when people make a judgment about some topic with which they are not expert , they tend to use a strategy called " anchoring and adjustment . " First , people access a belief ( which serves as the anchor ) and then adjust that belief to take into account additional factors . This strategy is remarkably effective in most situations .

Question: What if the classic work by Kahneman and Tversky was not written ?
Answer: People would make judgment about a topic they are not expert in .The technique would still be in use without a technical name .The psychology of human judgment would cover the humanities .People would not adjust beliefs taking into account other factors .