What term describes the biggest barrier to creativity?

The term that describes the biggest barrier to creativity is "expertitis." This term refers to a condition where individuals, often experts in their fields, become so entrenched in their knowledge and experiences that they rigidly adhere to established norms and practices. While expertise is valuable, it can lead to limitations in thinking and the inability to see beyond conventional methodologies. This phenomenon can stifle innovative thought and hinder the ability to generate new ideas. Experts may overlook novel approaches, becoming less adaptable to change because they are bound by their prior experiences and knowledge.

In contrast, other terms presented do not capture the essence of a barrier to creativity. "Innovation" is typically the goal we seek to achieve through creative processes, not a barrier. "Natural creativity" refers to the innate ability to generate ideas freely, which would ideally be encouraged rather than hindered. The "onion model" is a concept used to illustrate various layers of information or ideas but does not specifically relate to barriers in the creative process. Thus, "expertitis" clearly encapsulates the hindrance to creative thinking, making it the correct answer.