The Monty Hall Problem
Three doors, one car. The host opens a losing door and offers you the swap. Does it make any difference whether you take it?
1975 (posed), 1990 (made famous)9 min read
Hungarian mathematics
Paul Erdős
1913 – 1996
One of the most prolific mathematicians in history, with around 1,500 papers and a famously itinerant life. He appears here for a humbling reason: he reportedly refused to accept the Monty Hall answer until shown a simulation.