For the Pope to turn into an antipope, you’d either need to have a massive schism in the Church that leaves the current pope completely stranded politically and causes the Church to ignore him, or you’d somehow need a higher authority than the Church to show up and name a different pope, and assume the current one wouldn’t yield.
So basically, short of Jesus showing up and naming a new pope that the current one doesn’t agree with, the current pope won’t become an antipope.
Conventions too.
I had hundreds of hits from a single day at an anime con, and managed to fill half the globe with a handful of conventions.
Nothing like coming home and spending the entire night getting those puzzle pieces and beating that Dark Lord.