[Willow shrugs. She'd been a straight A student before becoming a witch, and science and math always came easily to her, so in her view the magic-science connection made sense and was logical. It was something she'd thought about consistently during her time learning spells, whatever Anya had to say about not needing to.]

It's just how I learned it. I didn't really think anything of it cause a lot of things I was learning at the time were supposed to be fictional. Hellmouth, demons and vampires, [she says pointedly.] Magic was just one more thing, except I was good at it.

But all spells require an input of energy, and the more I try to go against nature, the more energy it takes. I have to get it from somewhere.