User blog comment:Godisme/Deicide 19/@comment-1492258-20100826015910

Stupid Aizen is stupid. He says he is disheartened and that Ichigo failed at evolution because he can't feel any reiatsu from Ichigo but that itself is an achievement since, in his own words, even if Ichigo were surppressing his reiatsu is should be impossible to sense absolutely nothing.

Stupid Aizen thought this meant that Ichigo got weaker althought it means quite the opposite. Ichigo can do things that should be impossible, he's in another league now.