Board Thread:Theories and Speculation/@comment-1872728-20160404064008/@comment-734582-20160407091544

UltimaDude wrote: And to add on to that statement, BZ tried to make both transmigrants awaken the Rinnegan and it didn't make any mention of awakening SPS You need the rinnegan to summon the Gedo Statue, that's why.

As to SPSM, it gives an insight into the world not unlike Rinnegan. In fact, the whole Limbo thing suggests that SPSM's sensing is on par with the Rinnegan's vision.