Actually I think the more interesting thing about papal “infallibility” is when two or more popes make contradictory statements, say on whether or not Jews are responsible for killing Jesus or evolution. Obviously one pope or the other has to be wrong when that happens. How do you decide which one is right? Is it always the latest one? If any pope CAN be wrong, then no pope is infallible. I wonder how Catholics work that out?
Our brains have evolved the hard wiring to accept what authority figures tell it.
If a mother tells child to avoid certain animals, its chances of survival are higher than a child that ignores her advise.
It appears that some humans are more likely to become stuck on the accepting side of the spectrum.
Their brains are less stressed when the blank spots are filled in with certainties.
In order for the spiritual pap that the Catholics have accumulated to be palatable, their leader would have to be seen as infallible.