And, as long as we know how to invoke it reliably and properly, we don't __need__ to understand how. (Though, being nerds, we often want to.) I agree: "Magic"

And, as long as we know how to invoke it reliably and properly, we don't __need__ to understand how. (Though, being nerds, we often want to.) I agree: "Magic" is one of the best shorthands for "We can explain that later but for now let's assume this works".