Assumptions, Emotions, Perceptions, Conditions, and Facts color our communication with ourselves and others. We must learn to manage them.
A wise man once said that the hardest thing about communication is the illusion that it has occurred. I have been involved in hundreds of medical, military, and public safety operations, and the after-action reviews of each one cite communication as a problem. Whether in business, relationships, or anywhere else, avalanches of academic papers and mountains of media articles bemoan our inability to effectively talk to each other, and propose ways of fixing it.
Several factors are present in every communication event, including assumptions, emotions, perceptions, conditions, and facts. They change the communication, often without the participants realizing it.