The Importance-Neglectedness-Tractability (INT) framework is a mental model used to evaluate and prioritize problems or cause areas. It guides resource allocation by considering three key factors to maximize positive impact. Importance measures the potential benefits or scale of improvement that could result from solving a problem or advancing a cause—essentially, how much positive change it could create in the world. Neglectedness assesses how many resources or how much attention are currently directed toward the issue; the less attention and investment it receives, the higher its neglectedness, implying greater potential for marginal returns. Tractability refers to how easy or difficult it is to make progress on the problem, including the effectiveness of existing solutions. The INT framework encourages directing resources toward areas that are important, highly neglected, and tractable, thereby achieving higher efficiency and impact.