Whenever we think about communication, our major concern is to communicate in an effective way as well as with high reliability. The problems in communication are somewhat different from the problems that we face in other fields. The main problem lies in its behavior. Communication is a process wherein the act of communication is constantly changing as the communication proceeds.
Because, we do not get knowledge at one go. It is an incremental process. Brain is an advance information processor. It is collecting data, processing it and drawing inferences. Simultaneously, it is controlling various parts of the body. It is astonishing that all human brains are equipped more or less in the same way. It is the question of training and application of brain only. We all try to apply our brain to achieve maximum level of reliability on the matters of our interest. Our brain is constantly collecting data. It is called "data acquisition ". It is also ignoring irrelevant data, which we call "filtering or censoring the data".
It depends upon capability of a person how he/she collects relevant information; and how much information he/she utilizes. It depends upon ability and skill of a person to analyze the information and to draw the reliable inferences for making valid judgments. It is a general practice that every person thinks that he/she obtains results with high precision. The simple reason is that he/she has been taught arithmetic since L.K.G. Accuracy in arithmetic is not equivalent to accuracy of our knowledge about the problem. Generally, we suffer from "Delusions of Accuracy ". Due to number of limitations, we are frequently compelled to make decisions with the evidence at our disposal.