The Science of Harry Potter

The book blends science and fantasy in a fun way—I'm curious whether the author had a specific scientific concept in mind or if it evolved naturally during writing.

Some of the science-based theories really made me see the magic in a new light. Are there other readers who felt the science added a new layer to their enjoyment?

The book covers everything from potions to spells—I'm wondering what guided the choice of topics and whether certain spells or practices were prioritized.