magic magic is about being unaccountable, about removing the source of the action from yourself. it works by exploiting a kind of gravity, called the arrow of time. things in this universe always seek the least energetic state. all potential is gradually lost into lesser forms (such as heat). magic then, is creating tunnels, specific and intricate canals, for this to happen in a controlled manner. think of it as setting an elaborate trap for entropy. and then, when the circuit closes, the arrow is forced to do your bidding! of course, you're also irreversably draining time from the universe, but yeah. the danger is a runaway spell - if the filament of your canal is too weak, or the potential is high enough to escape any self-closing mechanisms - a breach. these are usually catastrophic. although many are local, they stay active until closed off by counter spells (hard to pull off) or there's no more energy to fall through. in that case the outcome depends on the spell. small-scale breaches might not even be noticeable by the uninitiated; but a spell might also very well bring about the heat death of the universe. well. it is what it is. a dying art.. maybe for the best.