Now that we know rinengan users have linked visions like the 6 path of pain and when tobi was controlling the jinjurukis. but madara also has the rinnengan so does that mean Madara and Tobi have shared vision but it doesnot seem so,
there is only one person who ever unlocked the renningan beside the Sage
and that's Madara
nagato renningan = tobi renningan = madara renninagan
madara is an edo and that is what make it complicated
cuz madara renninagn is from past and those eyes are not the same technically
I mean madara eyes is not same with tobi eyes NOW
if edo madara eyes are not of present then how did naruto feel something when the something brothers transformed using karuma chakra. they are also from the past