CosmicComet
Senior Member
It all depends on the scale of telepath Cassandra Nova is.
Babidi is a planet wide telepath as you said, and SSJ2 Majin Vegeta marked the limit of his telepathic abilities-- who was a solar system+ level character via scaling above Super Perfect Cell.
Dabura -> Ssj2 Vegeta -> Fat Buu all represented a linear ascension in power and also showed how Babidi's power faltered the more ki he was dealing with.
Seeing as even base Namek Saga Goku was a decent telepath and SSJ2 Majin Vegeta would have been several thousands of times more powerful, the scaling chain gets insane fast.
If Cassandra Nova's scale is only like, several times wider
than Babidi's then I see no reason to assume she would even remotely affect Jiren at all--who is literally infinitely stronger than anyone below BoG arc Goku.
If her scale is hundreds or even thousands of times greater than Babidi's then I would not feel comfortable saying Jiren could no sell her TP.
While it's well known that physical stats scale linearly with power level in Dragon Ball, with TP resistance it's not outright stated in the same way.
BUT--there is concrete evidence suggesting it does via Babidi's showings. And no evidence that I can think of that suggests TP resistance *doesn't* scale linearly in DB.
The series is extremely straightforward in it's A < B < C scaling.