User blog comment:Yoruichigoddessflashes/Ichigo, the Savior/@comment-1393830-20100805201703

It doesnt matter if his character improves, the fact of the matter is, Kubo has made Aizen invincible and so even if Ichigo somehow is able to fight on par or surpass a captain, it will not be realistic that he defeats Aizen. The only believable way for Aizen to die now is if every single character ganged up on him and used the best of their abilities to defeat him. Even that may not be enough