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The Chimp Paradox by Steve Peters is the most accessible account of the limbic-prefrontal dynamic for the reader who wants a practical rather than academic treatment of what happens when the gap closes. Peters, who developed the model working with Olympic athletes, uses the chimp as his term for the limbic emotional system and the human for the prefrontal rational one, and his account of the conditions under which each takes control maps accurately onto the Arnsten research on cortisol and PFC function. The model is deliberately simplified — Peters is explicit that it is a management tool rather than neuroscience — but the practical framework for understanding reactive behaviour as output from a system that can be managed rather than character that cannot be changed is the core insight the gap research supports. His account of the conditions under which the chimp takes over, the triggers and escalation patterns that bypass prefrontal engagement, and the specific practices that strengthen the prefrontal capacity to hold reactive responses is the most practically useful introduction to the neural architecture of the gap for the entrepreneur who wants to apply it immediately.