This comment reminded me about "The Knowledge" [0] that London cab drivers must have before they're able to be a cab driver. [0] https://en.wikipedia.org/wiki/

This comment reminded me about "The Knowledge" [0] that London cab drivers must have before they're able to be a cab driver. [0] https://en.wikipedia.org/wiki/Taxicabs_of_the_United_Kingdom#The_Knowledge https://en.wikipedia.org/wiki/Taxicabs_of_the_United_Kingdom...