Sinek believes that only the answer to the question "What?" is connected with the neocortex, the rational part of our brain. The answer to this question will be the product or service that will help achieve the vision and mission answered in the "Why?" question.
The neocortex is the outermost layer of the cerebral cortex, responsible for higher mental functions such as sensory perception, spatial thinking, conscious thought, and speech. It's the most advanced and complex part of the human brain. The neocortex plays a significant role in analyzing, interpreting, and processing information received from various parts of the body and the environment. It also participates in decision-making and problem-solving.
So why does Sinek place the answer to the question "What?" in the outer, less significant radius of his "Golden Circle" concept?
He maintains that the neocortex, as a newer formation of the brain, has significantly less influence on decision-making than the limbic system. This is why successful individuals and organizations concentrate their efforts on the answers to why and how they do what they deem important.