Final answer:
The claim that most communication skills are instinctive and cannot be improved is false. Communication skills can be developed through education and practice, and they are not purely instinctual.
Step-by-step explanation:
The statement that most communication skills are known by instinct and cannot be learned or improved is false. While some basic forms of communication may be instinctive, such as a baby's cry, most communication skills, including those used for effective speaking, writing, and non-verbal communication, can indeed be learned and honed through practice and education. There are many strategies and techniques available to improve these skills, such as public speaking classes, writing workshops, and interpersonal communication courses.
It is also important to recognize that different cultures have different communication norms and practices, which further illustrates that communication is a learned behavior. With dedicated effort, feedback, and the right resources, individuals can significantly enhance their ability to communicate effectively in various contexts. The adaptability and improvement of communication skills are well-documented in both education and professional settings.