Effective decision-making is not just about evaluating options but also about understanding the destination one seeks. Without clarity on where one wants to go, any decision may seem acceptable until its unintended consequences become apparent. 3D Thinking™—integrating Hindsight, Insight, and Foresight—offers a structured approach to decision-making in variable-rich and contextually complex environments. Intelligence, traditionally measured through IQ and academic performance, fails to capture the ability to navigate uncertainty and adapt to changing circumstances—hallmarks of contextual intelligence. True intelligence lies in the capacity to diagnose and respond to situations appropriately, rather than simply applying learned knowledge. This chapter explores the limitations of traditional intelligence assessments, emphasizing the distinction between application-based knowledge (knowing how) and operational knowledge (knowing what to do). The VUCA world (Volatility, Uncertainty, Complexity, and Ambiguity) demands leaders who can transition between contexts, leveraging experience, vicarious learning, and adaptability to improvise and exert influence in dynamic environments. Additionally, contextual ethos—the shifting variables that define a given environment—plays a critical role in leadership as a social process. Intelligence must be evaluated relative to the specific context in which decisions are made. As organizations move toward interconnected, fluid structures, the ability to navigate multiple contexts and synthesize knowledge from disparate experiences becomes a key indicator of success. Adaptability, situational awareness, and the ability to transition between contexts with minimal adjustment time are the hallmarks of contextually intelligent leaders.