Board Thread:Theories and Speculation/@comment-34656247-20180531072459/@comment-5311048-20180605135241

@ Jason of the Mangekyou That isn't really accurate for the fact that Tobirama is only a few age younger and still became Hokage. It was probably a mistake on the writers hand. (Should be remembered that Edo Tensei revives a person from how they died in, example is Nagato. Madara was the exception due to Kabuto experimenting on Madara's Edo body to make him younger.)

Over all I stated my opinion on Hashirama vs the genjutsu. Enjoy.