Alrigth so the more advanced the world is the less magic exist? Ether is consumed overtime until it no longer exist in the world and at some point the world turn intoo a lost world?
Theoretically, yes and no, ether is much like an apple tree, and the worlds are the apples. When a world "ripens", the ether flows within will be "cut off" and become "inactive" (like the MC's world,no magic exist, but still can sense a little ether within), and this world will become a lost world.