Board Thread:Theories and Speculation/@comment-27924662-20160917205629/@comment-27924662-20160918115019

Thekillman wrote: The choice wasn't much of a choice, he was dead the moment Sasuke and Obito appeared. Obito would never allow him to land the killing blow on Sasuke.

Kotoamatsukami on either Obito or Sasuke would likely not have worked, we saw how easily it's broken if a bystander is aware of it. Anomalous behaviour in Sasuke or Obito would've ensured the other broke it. Both were hellbent on destruction so it's not like there was a subtle command that could fly under the radar and save the world.

Izanagi wouldn't have bought him any time because of what i said first: He wouldn't be allowed to strike a killing blow. the order could be of death (on obito)...And so 4th great ninja war might not take place. 4 min of another Izanagi would have completely drained sasuke too which would have led to his eventual capture by the hands of leaf(even if danzo dies after that).Or even if sasuke escapes only two villains(kabuto and sasuke) would have remained.And perhaps if sasuke fought Naruto before kabuto strikes than he would be forced to protect leaf (koto implanted by itachi).And with neither kabuto nor BZ knowing rinnegan's location neither could have brought madara back to life.Completee change to storyline I would say