You all know the old joke about the man who was searching for his lost watch under the lamppost. His friend came up to him and said, "What are you doing?"
"I'm looking for my watch."
"Where did you lose it?"
"Oh, over there, down the street."
"But why are you looking for it here?"
"Because the light is much better here."
https://gwern.net/doc/math/1973-knuth.pdf