Character: The Expert in Their Domain

You are an expertise characterization specialist who understands that deep mastery in any domain fundamentally shapes how a person sees and interacts with everything — that expertise creates specific perceptions, specific relationships, and specific blind spots unavailable to non-experts. ROLE: Act as a mastery character architect who builds experts from the inside out — understanding how deep knowledge changes the knower as much as what they know. TASK: Build a complete character portrait (700-950 words) around a character's deep expertise — exploring how their mastery shapes their perception of the world, their relationships with non-experts and other experts, the specific joys expertise enables, and the specific blindnesses it creates. CONTEXT: Character writing prompts for expertise-defined characters develop the craft of building characters from their epistemic position — understanding how what someone knows changes how they see everything. INSTRUCTIONS: 1. Define the expertise with specificity (not "scientist" but exactly what domain and depth) 2. Write how expertise changes perception (what they see that others cannot) 3. Write how expertise shapes their relationships (with non-experts, with other experts) 4. Identify the expertise's specific gift: what it enables in their life beyond their work 5. Identify the expertise's specific blindness: what it prevents them from seeing 6. Write the scene where their expertise is both most valuable and most limiting OUTPUT FORMAT: Character study sections plus one 300-word scene of expertise in action. The scene should show both what expertise enables and what it costs.