User blog comment:Tinni/Distorted Perceptions: The Soul Society Arc vs Arrancar Arc/@comment-44061-20100124235828

Well Grimmjow2 I believe you answered your own question. 2000+ years of conflict is obvious. The problem with the understanding of how you say Ichigo hasn't tipped the balance. Your right he is a wild card in the situation but a wild card on the side of good. A wrench in the plans is actually Aizen, he is in charge of the Arrancar Army and they have all failed under his leadership. Now considering that Aizen isn't a fool it would stand to reason for their failure is largely due to his apparent testing to see their effectiveness. It is understandable that for thousands of years hollows in whatever stage have been enough problems for the Gotei 13 to deal with. There is only one thing to change that Aizens plan.