Hypothesis: People who were world famous a generation ago are no longer famous. 

Experiment: The Marlon Brando game. 

Without googling or looking at replies tell me which one of these men is Marlon Brando. https://image.nostr.build/a248a8c2fe0113c9321b2cb86c732d723e553f1bf9ca50e6bb9ae7638af9dc92.jpg