Board Thread:Theories and Speculation/@comment-35685868-20180605140514/@comment-1751565-20180613232325

Nashikeine wrote: No.

Hiruzen never learned FTG, just like he never learned Edo Tensei, Rasengan, CHidori or many other jutsu in existence in Konoha.

the statement seems more like a hype up for the man.

The Professor alias would have been more specific to his ability to understand and break down all forms of jutsu and how they work, an ability he showcased in the war.

Didn't Konohamaru himself stated in Boruto that The Third could have used Rasengan??? When he was boasting about it and was about to use it in battle???