Originally Posted by
Twickster
It is actually conceptually a very clever way to handle entropy. It takes an abstract concept (emotions) and turns it into actual, extant energy. Now, while this takes some minimal form of input (the brains need to be supplied with some form of energy), by and large its turning "nothing" into "something" and adding to the overall mass and energy of the universe.
The stupid thing about it is why they don't take advantage of economies of scale. There are seven billion people in this planet experiencing emotions, why just leave it to a handful of magical girls?