Board Thread:General Discussion/@comment-33530084-20171031120106/@comment-26232441-20171112113134

I'll just tackle a couple of these~

For 3., Aizen is immortal. That alone may be reason enough. *shrug* Maybe he spent all the time meditating, and that could increase his reiryoku? He may have been struggling all that time against his restrictions, and saw it as a way to train, at least in exertion of reiatsu?

For 6., Aizen had a change of heart? Dunno. But his nemesis the Soul King was long gone, and hence probably felt purposeless after that. We have seen how Aizen didn't seem to mind being bound as he deliberately had his sentence increased. Maybe he just didn't care anymore since he was immortal.