The following is the conclusion of NonVeni Mark’s crosspost of the Part 3 video.
As you examine the evidence, keep in mind the following axiom: Pope Benedict, in his act of resignation, needed to fully assent with his will to the total renunciation of the papacy in toto in order for it to be valid. If you find evidence, spoken, written, and visual evidence, that he did NOT intend to fully resign, that, on the contrary, he quite obviously intended to remain in some way papal, well then you have your answer. SUBSTANTIAL ERROR. -nvp