Board Thread:Theories and Speculation/@comment-35685868-20180605140514/@comment-34436445-20180613050035

Hiruzen can learn the ftg,it can be used by anyone with a decent understand of seals and it's usage. Hiruzen could learn that technique, if he learned the reaper death seal technique then he has the aptitude and skill to learn high level sealing techniques. He has to memorize the ftg formula also. But hiruzen in his old age would not be able to use it to maximum potential like the second or fourth hokage.