[P] = C and T Horn is Expecting Another Pope-Video

I thought I might look something up rather than just guess all the time.  
(Now, now...I look up plenty of stuff. It's my middle name, right between 'copy' and paste'! LOL)

https://www.ncregister.com/blog/jimmy-akin/9-things-you-need-to-know-about-the-chair-of-st.-peter

Highlights:
Yes, there is a physical object known as "the Chair of St. Peter."
It is housed at the Vatican, at the back of St. Peter's basilica.
February 22 is the Feast of the Chair of St. Peter.

there is a physical object--an ancient, ornamented chair.
and there is the spiritual authority that this chair represents.

This object is known as the Cathedra Petri (Latin, "Chair of Peter")

1 Peter 5:1–4, which reads:
So I exhort the elders among you, as a fellow elder and a witness of the sufferings of Christ as well as a partaker in the glory that is to be revealed. Tend the flock of God that is your charge, not by constraint but willingly, not for shameful gain but eagerly, not as domineering over those in your charge but being examples to the flock. And when the chief Shepherd is manifested you will obtain the unfading crown of glory.


"Does the pope have to sit in the physical Chair of Peter be infallible?

No. Although the pope's infallible pronouncements are called ex cathedra (Latin, "from the chair") statements, he does not have to be sitting in the physical chair (which is rather high off the ground in any case).
In fact, he doesn't have to be seated at all.
He simply has to use the fullness of his authority as the successor of Peter to definitively teaching a particular matter pertaining to faith or morals.
This use of the full extent of his teaching authority is referred to figuratively, as him speaking "from the chair" of St. Peter.
It's a figurative expression, not a reference to the physical object."

The ancient chair:  




 Italian artist Bernini designed this chair currently displayed

https://z3news.com/w/tom-hornpetrus-romanus-succeed-pope-francis/

You want to read this.

If Tom Horn can change his mind after the massive research he put in, I think we're safe to do the same.

Tom Horn: Petrus Romanus will soon replace Pope Francis  dtd 04 October 2014
In the 6-minute video shown below, author Tom Horn explains why Pope Francis might not be the one who fulfills St. Malachy’s 878-year-old prophecy, which foretold specific details of each of the final 112 Popes, concluding with Petrus Romanus, which means Peter the Roman, who will be serving as Pope when Rome is destroyed and God judges His people.



https://www.youtube.com/watch?time_continue=374&v=q0gcDFaHrmU&feature=emb_logo