How to Avoid the Energy Budget in Magic Systems

Howard Kurtz: How can magic or science be commodified? If it's cheaper than having the donkey do it, what happens to the donkeys? He says role playing game systems are not meant to create an immersive real world. "You have to make sure your magic isn't breaking reality for the reader in that way," he says. 'Your book is about immersion and about the story being real'