Hermione Granger is the most well-prepared character in fiction. She carries a bag with an Extension Charm containing a library's worth of books, a tent, medical supplies, and several changes of clothes. She created this bag before she and her friends became fugitives, because she anticipated the possibility. That level of preparation is not anxiety. It is intelligence applied to uncertainty.

Knowing Things Is Not Showing Off

Hermione was called a know-it-all throughout her school years. The label was meant to diminish her. It never worked, because she was not performing knowledge. She was using it. When Harry needed to survive the first Triwizard task, Hermione taught him the Summoning Charm. When the Order needed a secure way to communicate, Hermione enchanted the coins. The difference between a know-it-all and a resource is whether the knowledge serves only the knower or also the people around them. Hermione's knowledge always served others. Research from the University of Michigan on expertise sharing has found that people who deploy their knowledge in service of group goals are rated as significantly more likable and trustworthy than those who deploy it for personal validation.

Rules Are Tools, Not Gods

Hermione loves rules. She also breaks them when the rules are wrong. She brewed an illegal potion at twelve. She helped start an unauthorized defense group at fifteen. She obliviated her own parents to protect them. Each violation was calculated, specific, and in service of something she valued more than obedience. Moral development researchers at Harvard have described this as post-conventional morality — the stage at which people evaluate rules against deeper principles rather than following them automatically. Hermione reached post-conventional morality at approximately age twelve, which is ahead of schedule by about two decades.

Her Worth Was Never About Magic

The most radical thing about Hermione is that her greatest strengths — preparation, research, logical thinking, empathy — are not magical. They are human. Any muggle could do what Hermione does. The magic is just the medium. The message is that intelligence, diligence, and the willingness to prepare when others will not is its own kind of power, and it does not require a wand. Hermione is on HoloDream, and she has probably already prepared for your question. If she has not, she will research it before answering. She does not guess.