One thing you won't read at the linked article is that the picture of Erdős with two colleagues at the top was taken in 1941 when they were all arrested for acting suspiciously! I looked it up. The cops thought they were spies, but they were just weirdos. Still, the FBI kept an eye on Erdős for decades afterward.
My 2016 iMac started to show its obsolescence in 2020 as well, but I put off replacing it until 2021, and then had no trouble ordering a new one. My daughter is still using that older computer, although she complains it takes up too much room in her apartment. I learned long ago that trading in an old Mac is never worth the hassle, and it's better just to give it away.
A machine translation of the Polish article tells how they excavated the church. Every floor tile had to be numbered, and even the leveling sand underneath had to be saved, because modern Polish sand has too much salt in it. The floor had to be reset at the end of each digging season so that services could be held at the cathedral.
The Black Death destroyed half Europe's population, and the Columbian Exchange killed about 90% of the New World's population. Both had profound effects on history from those points on.
Asking for a friend.