in a way the darkness and the light r not "good" and "evil" on both sides the other is considered evil while their own side is good really both r neutral it's just they r opposite death(darkness) and life (light) r both necessary even if you dont want it to be true even tho the darkness is destroying and wiping out species and civilizations, the traveler is doing just as much damage with so many people living long, there would just be too many people